57 TIMESKIP

"Welcome to the holy land Engoku. I am the leader of this holy land. My name is Takagami. Greetings all. I hope you can enjoy your time in this holy land." Takagami said.

The reaction that Takagami got from people other than Haku was stunned silence, as if they couldn't believe what they had just seen. Seeing everyone's funny reactions made Haku chuckle. "Your reactions were as I expected." Haku said.

"Yu..Yuki-kun, why can they talk like humans?" Midoriya asked quietly for fear of offending the wild animals there.

"Well, because they are mystical beasts. It is true that some are shaped like animals in general, but all the animals that live in this holy land can experience miracles thanks to the atmosphere that exists in this holy land. "But only a few can talk, most of them are over 100 years old." Haku said.

"100 years?!! How long can they really live?!" Kaminari and Mineta exclaimed.

"Who knows. You can think of this as another dimension from your world because time here runs slower than in your world. The comparison is that one day there is the same as a week here. So if you train here for 45 days, that's 45 weeks in the outside world." Haku said.

"45 weeks, that means one year we will train here." Midoriya said.

"One year, that's a long time to improve your fighting skills, right? You've taken an internship to gain experience for two months, then you'll improve your quirk here for a year." Haku said.

"This is a rare opportunity. Use this opportunity as best as possible so that you can get stronger every day so that there will be no regrets in the future. "Me, Vlad, and the Pussycats will supervise your training while you're here." Aizawa said.

"YES SIR!" the students exclaimed.

"Sensei! So, what is our training system like here?" Yaoyorozu asked.

"Same as before. For those of you who are the operative type, this will increase your maximum limit. "For heteromorphic types and other mixed types, they will train the part of their body that is related to their quirk." Aizawa said.

"You can also request sparring with wild animals if you want. They are strong enough to be your opponents. Could be a good experience. You can talk to me or Takagami-sama if you want to do so. No need to worry if you get hurt. Here, Katsuyu-sama can heal your wounds quickly." Haku said.

"Katsuyu-sama?"

"She's a medical slug." Haku said then pointed behind them. This made everyone look back and were surprised to see a giant slug standing behind them.

"GYAAA!!!!"

"You guys are so rude." Haku said when he saw the reactions of many students who screamed because they were disgusted or afraid of the giant slug.

"Please forgive my friends' impoliteness, Katsuyu-sama." Haku said while bowing apologetically to Katsuyu.

"Fufufu… No problem, Haku-chan. I heard that many people don't like slugs. Especially humans who aren't shinobi." Katsuyu said wisely.

"You guys, it's better to quickly adapt here. Don't be easily surprised or disgusted by all the animals here. Katsuyu-sama is a wise animal, so she doesn't mind your impoliteness. However, it is different with other wild animals, especially young ones. They are easily offended. And if they have been offended, your life will not be easy here until you apologize to them sincerely." Haku said.

"Haku, you seem very familiar with all the animals here." Kirishima said.

"Haku is a very polite and kind child. When he came here for the first time, he never did anything to offend us. So, we let him stay here and explore all this holy land. He has talked to all the animals here and none of them hate Haku." Takagami said.

"Little boy Haku is the type of human we really like. Usually, we beasts are forced to make contracts with shinobi we don't want. But Haku is different. He first offered us a contract before making a contract. He did not make the contract by force but rather with the consent of the beast he desired. That's what makes Haku liked by all the wild animals here. Because there are quite a few of us who hate humans because of their selfishness and greed." Manda said.

Hearing this made Haku embarrassed. "Haku is great huh. Even wild animals like him. I wonder, is there anything you can't do?" Kaminari asked.

"I also have weaknesses. I'm not as great as you think. OK, that's enough talk for now. It's better for you to put your things first in your resting place. For today, we will go around first so you can get to know this place better. Tomorrow, you can choose your training location according to your quirk. Right, Aizawa sensei?" Haku said.

"Yes. Even though I've never been here, since Yuki said that all kinds of terrain are available here, I'll let you train wherever you want." Aizawa said.

"Sasaki, Hanami, Masami, you can also make a contract with one of the wild animals here. Anything doesn't matter as long as it suits what you need. But remember, you must get approval from the animal first before making a contract. I don't want you to impose your own will unilaterally. Understand?" Haku said.

"Understand, Haku-sama." Answer all three.

"Okay. All of you, get up to my back. I'll take you to your resting place." Manda said.

Some of the children immediately became excited because they wanted to try riding the wild animals there. After everyone climbed onto Manda's back, Manda began to move towards their resting place which was not far from there. Finally they came to a giant tree which was very shady.

Everyone could see that there were windows and doors attached to the trunk of the giant tree. There is also a wooden bridge that connects one branch to another. Several wild animals roam around the tree, such as monkeys, squirrels, birds and tigers.

"Welcome to Bashira tree." A female monkey said kindly. The size is normal like animals in general.

"Put your things over there. Boys on the left and girls on the right. For the teachers over there. Men on the left and women on the right. As for food, we will prepare it, so don't worry. And the bathing place is a separate onsen next to the Bashira tree. If you have any questions, I Saruhime will answer them." Saruhime said.

While the others were putting their things in the designated room, Haku approached Saruhime who sighed after tensing up. "Did I do well just now?" Saruhime asked Haku.

Haku gave Saruhime a thumbs up and smiled. "You're great, Saruhime-san. Thank you for being an intermediary in Bashira." Haku said.

"Will this go well?" Saruhime asked.

"There might be a bit of trouble coming. But you have to face that if you want to get rid of your timid nature, Saruhime-san. Fighting." Haku said.

"You're right. I will." Saruhime said with a smile.

After everyone put down their belongings, Haku invited everyone to tour the holy land. Using several birds that lifted baskets so that everyone could see the holy land from above, Haku explained everything to his teacher and friends.

Of course the reaction that Haku got was admiration, surprise and pleasure. Many people's enthusiasm starts to burn when the journey is almost finished. When the journey was over, they returned to Bashira to clean up, eat dinner, and rest because tomorrow everyone would start their hard training.

"Haku-sama, are you leaving?" Sasaki asked when he saw Haku who was getting ready to leave.

"Yes. Sorry but, I still have things out there that I can't leave behind. You guys stay here and practice with the others. Help others if they encounter difficulties. I'll be back in a few days." Said Haku who had finished getting ready.

"Okay, if that's what you want, we'll do it nicely." Hanami said.

*TIMESKIP 2 MONTHS*

All students in class 1-A and 1-B are ready to leave the Engoku holy land. Now they are waiting for Haku to get out of there. After less than a year of hard training in Engoku, everyone had now become stronger than before. Almost all children already have more than 4 ultimate moves.

No different from the children, Sasaki, Hanami, and Masami also became stronger. They have also made a contract with one of the mystical animals in Engoku. Sasaki chose to make a contract with a giant eagle named Katana, who is a female eagle. Hanami made a contract with a giant 2-headed snake named Ganda. Then Masami made a contract with a giant spider named Kumoya.

Meanwhile, Haku spent 45 days outside the holy land busy with his plans to rebuild Kirigakure with Mangetsu, Zangetsu, and Kisame. For days they had found dozens of people who could help them build Kirigakure so that it could move efficiently and well. They are also busy hunting down villains related to All For One, with the help of information from La Brava and Gentle, they move quickly so that those who are targeted are never ready to face a sudden attack from Haku and the others.

During that time, Haku has sealed the strength of hundreds of villains he meets with his new seal. People affected by Haku's seal will have a chain tattoo on their neck and have 3 chances to repent, they can use their quirk for crimes again 3 times, if they try to commit crimes again, then Haku's seal will trigger a heart attack so that the person who has the seal will die from heart attack. However, if the quirk is not used for evil, then the seal will not react.

Only Zabuza, Mangetsu, Zangetsu, and Kisame knew about Haku's seal, they didn't protest about it. In fact, they think Haku is too kind because he gave the villains he met a chance by leaving the seal. Of course, Haku never explained how the seal worked to the villains who were affected by the seal because he also couldn't waste time observing whether every villain he met would repent or not.

For a month of continuing to fight with villains, Haku realized that it was impossible for him to be able to save everyone or invite all the villains he met to come to Kirigakure to work with him for his future plans. He was also starting to feel tired of playing like the good guy all the time, that's why he perfected his seal and left it on all the villains he met.

During that month Haku also made thousands of bunshins which he distributed throughout Japan to destroy many villain organizations and indirectly killed almost 40% of the villains with his seal. This cannot be separated from the eyes of the media which always reports on the mysterious deaths of villains in various places because almost all of them died of heart attacks.

People who realize that the only people who die from heart attacks is the villain, feel that they are not at a disadvantage, but instead feel safe because the source of chaos has begun to decrease drastically. Because of this news, many people who had evil intentions gave up their plans and just hid in the dark because they didn't know the cause of death from the villain's heart attack. Haku worked so fast that no one knew that he was the killer of hundreds of villains during those days.

However, the government thought differently, instead they held an investigation into the deaths of the villains which of course was secret because if the public found out, they could be ridiculed by the public because they seemed to want to save the villains from the cause of their deaths. Haku, who knew about the team investigating the deaths of the villains, also began to be more careful in his actions.

Several clever and genius heroes have started to get clues about the cause of the villain's deaths, clues about the chain tattoos that were on the villains' necks before they died, because after they die, the tattoos will disappear. Because of this, Haku upgraded the seal so that when he left the seal, the chain tattoo on the victim's neck was no longer visible even though the victim was still alive.

Meanwhile, Haku and the others also succeeded in severing the ties of other villain organizations with All For One by 50%. For the villains who have a relationship with All For One, Haku will arrest and hand them over to the police so that the police investigation can progress further and reduce Zabuza's burden in the investigation, of course all the villains have also been given death seals by Haku so he doesn't need to worry anymore and hand them over all to the police and other heroes.

-Holy Land Engoku-

"Oi, where is that ugly mask? Why didn't he come? How long are we going to wait?!" Bakugo snapped.

"Wait a little longer Kacchan, he'll be here soon." Midoriya said. And it was true what Midoriya said, not long after that Haku arrived from behind the kuchiyose smoke.

When Masami, Hanami, and Sasaki were about to hug Haku after not seeing each other for a long time, the three of them stopped when they saw Haku's figure which was different from usual. His hair is now cut short at the neck and has bangs that cover his forehead. His costume has now also changed, namely the Fuuma clan shinobi outfit which includes a black sleeveless kimono, black hakama, black high boots, long sleeve coverings from the upper arms to the back of the hands, a large kunai at the back of the waist, and red accents on the shirt.

Haku's aura also turned colder, this made everyone speechless when they saw Haku's new appearance. There was no smile that usually graced his face. His eyes also looked more tired and his face looked exhausted both mentally and physically.

"Haku-sama?" call his three wives. Haku broke his thoughts and smiled slightly at his three wives. He then approached them and hugged all three of them at once. Without saying anything, Haku hugged his three wives until Sasaki finally spoke.

"Haku-sama, are you alright? You look tired." Sasaki said which made Haku let go of his hug and turn his gaze to his UA friends and teacher.

"Well, it feels like it's been a long time since we last saw each other." Haku said to his friends.

"If you count the time here, we haven't seen each other for two months. If it's out there, maybe it's only 8 days." Yaoyorozu said.

"Ah, 8 days huh. That means it's time for you to go back to where you came from." Haku said with a faint smile but his gaze didn't look at anyone and looked empty.

"Yuki-kun, you look exhausted. What are you doing out there?" asked a worried Midoriya.

"Ah, there are so many things I have to do out there. I was so busy, I forgot to take a break. I don't know when was the last time I slept. I don't even remember what date it is. Today, I came here because I happened to have finished my work and intended to visit you. I never thought that today is the time for you to go home." Haku said which made everyone worried.

"Oi, Haku. You already have responsibilities as a professional hero, but you still shouldn't forget to rest. Your body will be damaged if it continues like this." Aizawa said.

"Sorry sensei. I had a lot on my mind, so I couldn't sleep."

"Then, after this, you rest. The time is almost here, you must not be unfit during the war." Aizawa said.

"Ah, sensei you're right. Uncle also said I should rest after sending you guys back to UA. Then, after this, I'll go straight to sleep." Haku said then put his palms together in front of his chest.

Not long after, a white chakra that covered Haku's body came out of his body and had several unique patterns in the chakra, the chakra also formed a tail on Haku's back and the fox's ears. Everyone was shocked when they saw Haku's change because this was the first time they had seen Haku like that.

"Haku-sama, this…"

"This is Kurama's chakra cloak. I mastered it a few days ago. With this, I have double the chakra than before. Then, everyone climb aboard the Kuchiyose seal." Haku said then everyone stood in the kuchiyose circle.

"Thank you for everything, Takagami-sama, Katsuyu-sama, Manda-sama, and Saruhime-san." Midoriya said.

"Just be careful out there." Takagami said.

"Good luck out there. Beware of cunning enemies." Manda said.

"Be careful there. Take care of each other on the battlefield." Katsuyu said.

"Hopefully you guys are successful and win your battle there." Saruhime said. Several other animals that were already familiar with the UA children also accompanied them.

"Haku, don't force yourself. There are many people around you who want to help you. Don't carry all the burdens alone. " Takagami said which made Haku speechless.

"Understood, Takagami-sama. Thank you for the advice. Gyaku kuchiyose no jutsu!!"

Everyone disappeared through the smoke and at the same time, they appeared in the gamma training building.

"We're FINALLY HOME!!!!"

"I really miss the atmosphere of the modern world."

"Finally I can play on the computer again."

"I want to eat donuts."

"Pizza."

"There are still a few days before the war arrives, if you want to upgrade your costumes, immediately ask the development department." Aizawa said.

While the others were happy to be able to return to UA, Haku looked frozen, the chakra covering him had also disappeared. Suddenly he swayed and almost fell if he didn't correct his stance.

"Haku-sama?! Are you okay?" asked Sasaki who went straight to Haku when he saw Haku swaying. Masami and Hanami also approached Haku worriedly. Now Haku had started to sweat coldly and his head and body felt very painful because he had released all his kagebunshin at once.

'I should be able to release all the kagebunshin I've maintained for almost two months now. There are no more enemies that need my special attention now that I took care of them yesterday. The rest should be done by Gentle and the others. But, it turns out it's hard to let go of all the kagebunshi like this. I felt like my body was paralyzed and the pain was excruciating. I immediately felt the fatigue that my bunshin felt at once. I should remove them one by one.' thought Haku, who was now having a nosebleed but his gaze was no longer focused.

"Haku-sama! You have a nosebleed!" Hanami exclaimed which made everyone immediately turn towards Haku.

"Oi, Haku! Haku! Haku!!!" Kirishima called while shaking Haku's shoulder but Haku didn't respond at all. His empty and unfocused gaze made everyone very worried. Finally Haku fainted while standing up without knowing that everyone was very worried about him.

The next morning Haku woke up from his sleep. He was rested in the UA health room and cared for by Recovery Girl and several doctors and nurses who were brought in specifically by UA for Haku. When Haku woke up he felt very weak and his head was dizzy. "Ugh..." Haku groaned as he tried to sit up which ultimately ended in dizziness attacking his head.

"You fool, look what you do with your little body! Work so hard that your body almost breaks down!!" Exclaimed Recovery Girl who immediately scolded Haku when he just woke up. Recovery Girl is really angry with Haku because he doesn't take care of his body at all.

Haku could only stare weakly at Recovery Girl as she explained Haku's body was completely exhausted and malnourished. Several doctors and nurses who were there also looked at Haku with worry because Haku was still growing and didn't care at all about his tired body but still insisted on working as a hero.

"Why are you pushing yourself so hard out there? There are still many other heroes working here! Don't bear it all alone! You are still growing, if you continue like this, your body will be destroyed!" Recovery Girl said angrily.

Haku could only look down without being able to reply to Recovery Girl's words. While he was being examined by the doctors, Haku suddenly felt excruciating pain in his head which made him wince in pain while holding his head tightly. Everyone there panicked because Haku suddenly felt pain for no reason. Finally, the doctors gave Haku painkillers so that Haku could calm down a little.

A few minutes later, Haku could finally breathe a sigh of relief. "What happened to him?" Recovery Girl asked the doctors there.

"We don't know the cause yet. It could be due to fatigue but we will examine it further before reaching a conclusion." said one of the doctors.

"There's no need to waste time on this. It's just a side effect of using my eyes." Haku said lying because he didn't want to bother explaining the truth.

'I don't have much time left. I will end everthing in the coming war.' Haku thought.