Time to go...

School beach trip the next day...

Tabane Shinono came to the school trip to meet with her sister.

When the others with personal IS have been gathered for a training exercise. Rin asked why Houki was there. Orimura wanted to explain but was interrupted by Tabane. She then pointed at the sky and something falls off near them. She then introduces 'Akatsubaki', the personal IS of Houki. Houki then gives it a try to use her personal IS. For the others, it was fast and powerful but for Raizen.

R: "I was expecting more from it other than being fast, powerful, and able to recharge its own and other's energy shield."

Tabane: "How did you know that Mr. Raizen?" *cheerful on the outside, shocked on the inside*

R: "So you know me. I guess you did try twice in hacking the system of the company of my adopted parent, you would know."

Tabane: "Well, when my equipment was destroyed the second time, there was a message left saying 'try again next time by Raizen', I wouldn't think it was possible to counter me. Anyway, why do you think that a fourth-generation IS is not up to your standard huh?!"

R: "Simple..."

Houki and her personal IS suddenly appear in their location.

Houki: "What happened? One second I was up in the sky, the next I am at the ground"

Everybody else was shocked at what happened. Even Tabane was doing computations but it only reflects errors in her screens.

Tabane: "How did you do that?!"

R: "You don't tell your secret, why should I tell mine?"

Tabane: "But that was unbelievable as if you teleported her from the sky but there is no data and change in the atmosphere. When I calculate the possibilities, it only shows an error. I don't understand"

R: "You might never will."

The others wants to ask too but miss Yamada came and alert them about a rogue IS that came from a research facility.

R: "Let's get this over with."

Raizen raised his hand and pull something in the air. The next second, an IS manifested in their location. He then looked at miss Yamada.

R: "Tell them that we already got their gospel safe and secured and if they try anything funny like blaming Japan for their faulty security system then someone will show the world their true color."

Raizen then simply walk away making the girls speechless for what had happened. Suddenly, Tabane was smacked in her butt that she flew a few feet in the air though she landed normally while holding her butt.

When they were back in school. They didn't see Raizen with the class even Xiao Ning'er was also gone. Then the guardian of the two told the school that they will not be able to attend the school anymore and will just live their lives in peace somewhere.

With Raizen and Ning'er...

XNing: "Are you sure that we will just leave them just like that?"

R: "Yes, I even left some things just in case they failed altogether."

Ning'er just nods then they both disappeared from the world.

In a forest somewhere, Raizen and Xiao Ning'er manifests.

XNing: "Where are we?"

Before Raizen could answer, they heard of the battle not far from their position.

R: "Let's check it out first."

Raizen made themselves invisible and they fly towards the battle.

They saw two females battling three people with black wings. From the underground of a church, they also see one guy and a little kid fighting some sort of priest and another guy holding a blonde girl that is currently unconscious while being taunted by another person with wings.

XNing: "I want to help them."

R: "Alright, but go with this."

Ning'er was then equipt with knight armor and a robe. Her head was covered with a hood and her face was replaced by darkness. From her back, a few pairs of wings made of light and waving manifest themselves. Now she looks similar to Auriel from Diablo. Ning'er rush to the people in the church to help fight off the priests who were fighting the blonde guy.

When the priests notice Ning'er, they stop attacking the blonde guy and little girl. Even the guy with the blonde girl in his hands and the lady with wings stopped and look at the newcomer.

What all of them see is some sort of knight with wings of light.

??: "Who are you!?"

The newcomer didn't reply and just used her right hand to levitate the two guys, a white-haired girl, and the unconscious blonde girl then her left hand manifested a small flame and drop it to the ground. Some priest and the girl with wings snickered at the display but they weren't able to make a sound when the flame instantly engulf the whole room from bottom to top. After a minute, the flame disappeared and some priests were left alive but the girl with wings on the altar was replaced by a green glow. It then floats towards the blonde girl with the help of the newcomer and entered the girl's body. The newcomer then healed the blonde girl until she regains consciousness. The others wanted to thank the one who saved them but the person suddenly disappears.

The girl with crimson hair manifests herself near the students and asked what happened.

??: "What happened here and why are there some priests crying and begging for forgiveness?"

??: "We don't understand president but it seems we were saved by an angel. Though we were not having an unpleasant feeling from the person as if the energy around her is not holy."

??: "Her?"

??: "She was dressed all over and her face was covered in darkness so even when we were close to her, we couldn't see her face."

??: "Koneko, we're you able to memorize her smell and see if that person is still nearby?"

Koneko: "I wasn't able to because she reminds me of nature itself and she didn't emit any kind of energy. Not even The attack that she did felt like an attack at all."

??: "That is right president. That person just dropped a little flame and it instantly covered the whole room. It killed a lot of priests and the fallen angel."

??: "Yuuma..."

President: "We can talk about it more later. Now we should talk about what will Asia do from now on" *looking at the little blonde girl*

As per canon, Asia became a bishop of Rias Gremory and join the Occult Research Club in Kuoh Academy.

Two days later, she was to start living with Issei as a homestay and his parents agreed immediately. She also became a student there in the same class as Issei.

That same day when Asia introduces herself to the class. Rias let her go to a client for her debut as a devil.

While Issei was on his way to his client, Asia already come to the person that called for a devil.

Asia is now in front of a medium-size store and she sees through the window that there are two people busy with arranging some tables. The woman who is helping the guy with the tables saw Asia outside and walks outside to talk to her.

F??: "What can I do for you little girl?"

Asia: "I was sent here because I was summoned to help with my client."

F??: "So you are our devil helper? You don't look like one. You're more like an angel 😇 to me."

Asia: "No, I am a devil. This is my first job."

F??: "We'll, ok. We were almost finished. You will just help us in decorating the shop to make it feel more at home than a restaurant."

Asia then comes inside the restaurant and helps the couple, which she now knows, to finish decorating the shop. Later when they finished, the man then cook some food to enjoy after a hard day of work even though it was almost midnight.

M??: "Why don't you stay with us until morning? It will be dangerous outside at this time. You can sleep with my wife at our house near here because she took a liking to you. She would be sad if you return now."

Asia can't deny the request and the time is already late. She contacted Rias to tell them that she will stay with the client because of a request. Rias agreed and will just come and get her in the morning.

Three days later, Rias was talking to Issei and Asia about getting a familiar for the two of them to deliver fliers rather than doing it themselves.

After they compete against the student council, they are now at the underworld to find Issei and Asia's familiar. Issei was disappointed with the undine and continue to look for their familiar. They notice a sprite dragon on a tree and Issei wanted the little guy when suddenly, slices come pouring from the sky.

The slimes were eating away the clothes of Rias, Akeno, and Koneko while Asia was being protected by a barrier that bounce of the slices.

Issei: "Oh have some barrier around her but..." *looking at the other three girls with dissolved clothes*

Then they destroyed the slimes by either punching, slicing, or magic which made Issei devastated. But he notices the last slime that is going for Asia and tried to protect it but was zapped by the sprite dragon. The little dragon then went to Asia and when Issei tried to say hello, he was zapped by the dragon. Asia then made the dragon her familiar while Issei was still crying for the loss of hid slime-taro.

A few days later, Rias tried to give her virginity to Issei but it failed when the queen of her brother, Grayfia, came and interrupt what they were about to do.

The next day at the ORC room, Rias wanted to talk about her problem but a teleportation circle suddenly manifest in the room.

From it emerged a man by the name of Raiser Phoenix.

RP: "It's been a long time when I came to the human world."

Grayfia introduces him to the others as a pure-blooded high-class devil and the third son of the Phoenix family. He is also the fiancee of Rias.

When Rias keep telling Raiser that she doesn't want to marry him, Grayfia suggested that their differences should be decided by a rating game.

Raiser showed that he has a complete set of pieces and battled before and won while Rias has no experience with the game. Issei didn't like the idea so he challenges Raiser at that moment. Raiser then orders one of his pieces to fight but before they started, they both suddenly get thrown to their respective group.

RP: "Miss Grayfia, was is the meaning of this?!"

Gray: "I did not do it but I would also interrupt the fight a few seconds later."

RP: "Then who did it!?"

??: "For a chicken, you're rather arrogant."

RP: "Who said that?!"

Everybody in the room was looking for the person who is talking to them.

Gray: "I could not pinpoint the person's location."

Rias/Raiser "What!?"

Of all the people in the room, Grayfia was the strongest. If she can't even know the location of the person then he/she might be stronger than her.

??: "I wonder why the Chinese pantheon did not go to war with you guys for having Phoenix blood. A previously glorious bloodline is tainted in a body of a pathetic devil."

RP: "Who are you to say my bloodline is tainted!? I am a pure-blooded devil."

??: "Not with that tainted bloodline you don't"

RP: "I demand you show yourself!?"

??: "Why don't you fix yourself first"

The others were bewildered when the voice said that and look at Raiser and saw that his left hand was cut clean and was burning with white flame.

RP: "Ahh!!! My hand!"

One of his pieces gave him a bottle and he drank it. A few seconds later, his arm has grown back.

??: "Very potent potion."

RP: "WHERE THE HELL ARE YOU!!?"

??: "Don't bother looking for me. Not even that maid there can help you if I showed up. Just be glad that severing your arm is the only thing I did to you."

The pressure as heavy as a mountain was then felt by the group of Raiser while the others only fell something heavy on their body. Even Grayfia was not spared she is now on her one knee resisting the pressure.

??: "I don't care for your rating games but let me say something to you, chicken. If Asia, Koneko, and Akeno were abused when you win. I will see to it that there will be no more Phoenix bloodline in the underworld."

A resounding slap was heard and Raiser's left cheek is now swollen.

??: "As for you stupid little snake."

Issei then screams out of nowhere and holds his crotch.

??: "That is for being too perverted."

The pressure was gone and all of them thought that the person already left. Even when they are all shaken by what happened, Raiser continues to tell Rias that they will fight after ten days in the rating game. He then leaves quickly followed by his group to not anger that person anymore.

Grayfia also left and said that she will tell about the rating game and report what happened in the room.

Issei: "What was that all about?" *still aching"

Rias: "I don't know. Not even the queen of my brother can tell so that person must be stronger than her. Anyway, we can think about it later. For now, we need to focus on the upcoming rating game and we have ten days to get stronger."

They all agreed and the next day, they went to a mountain to train.

While they were training, Rias told them why is the rating game was important and reincarnating humans become a norm to the devils.

Asia then tells them what she knows because she is a former nun. She explains about the holy water and Bible then Issei chimes in.

Issei: "Aren't the holy water and Bible bad for the devil?"

Asia: "Yes but..."

Rias: "What is it, Asia?"

Asia: "I thought that when I became a devil I would feel some pain when reading the Bible but haven't felt any pain even now."

Asia read a verse from the Bible but nothing happened to her. This made the others astonished.

Akeno: "That is amazing Asia."

Rias: "You are immune to the pain?"

Asia: "I think I do. Thank god. Also..."

Asia showed them a key chain with a knight as an accessory.

Asia: "I receive this with a letter saying 'it will help you when the time comes."

Koneko: "Someone is watching you."

Kiba: "Don't you think that it was the person that interrupt Raiser back at the club? The person specifically called put, Akeno, Koneko, and Asia as if he wants them safe."

Rias: "We can't be sure but let's just hope that person is not an enemy at the end."

Asia: "I almost forgot."

Asia then brought out a box of cookies because they were going to rest before continuing the training.

Issei: "Cookies and cake?"

Rias: "Where did you get it from?"

Asia: "It was given to me by the beautiful lady who is my first client when I became a devil. Even her husband made food for us after I told them that I was going to train. He said that we might need some food to gain muscles then he laughs."

Rias: "Then before our match, we will go to them and say our thanks."

Asia was happy that she decided that.

Their training continued and after ten days. They returned to Kuoh town. Four hours before the match. They went to the place of the first client of Asia.

The woman who was currently serving food to a customer noticed them.

F??: "Oh Asia, you brought your friends."

Asia: "Hello miss Kazuna"

Kazuna: "Will you introduce me to them?"

Asia then proceeds to introduce her friends and they talked for a while.

M??: "You came back, Asia. Did you like the cake that Kazuna made?"

Issei: "What the... not only miss Kazuna is beautiful but her husband is handsome too. Oh my god.. ouch!"

M??: "Hmm?"

Asia: "Ah, this is Issei. The one I told you about who helped me when I first came to Kuoh Town."

M??: "Really? Then you guys can call me Raizen."

Issei: "Wait, miss Kazuna said that she is already married but you two look similar age with us."

R: "It's genetics kid. We too were surprised when we first met but don't be fooled by our appearance. We both were already thirty years old."

Asia: "Oh my, you look so young."

R: "I know right. It's like magic but I digress. We just got lucky with the selection and even more so with love."

Kazuna: "Enough with that talk and you guys can eat dinner here. We were already closing for the day. We don't want to miss the fight on our tv after 10 pm."

The group of Rias looked at her as if asking to eat here because if the cookies and cake were delicious, what about dinner?

She reluctantly agrees because even she wanted to taste the food here.

An hour has passed before they were done eating. After they said their thanks, they went home and prepare for the fight.