Chapter 1- Life Mentor System

"I didn't expect that one day I would end up traveling into the fictional village Konoha, and what's more, that I will be allowed to become an intern teacher after just arriving."

"Weird."-Jingyi sat in the office and doubted his life.

If it was still the day before, Jingyi was just someone who would be under the stress of an intense headache while trying to teach some annoying children from the Morden world that detest maths. But Jingyi hadn't expected that the next day he would wake up that he would never again have to worry about losing his job or being complained at by the parents of his failing students as he had been re-born into his favourite manga series Naruto as a random Chunin teacher under the new name Kanda Keiichi.

Looking outside at the noisy children running around, he couldn't get a trace of excitement in his heart.

Sure, the ninja world is really dangerous! But Konoha is relatively safe, but there are still disasters for so many years.

This is not.

A few days ago, the Battle of Kikyoyama had just ended. Kanda was injured and returned to the village. After his initial recovery, he was assigned to join the ninja school as a teacher instead of returning to the battlefield.

"It's a pity that the Senju clan has long since fallen, otherwise I would have been able to rely on them for peace and harmony..."-Kanda sighed.

From his new memory of his body he learnt that the Kanda family was a branch family that held the Senju bloodline within them.

The Senju clan was once a glorious family.

But.

Since the first generation onwards, the Senju family has been dividing and integrating into Konoha, and after the second hokage, Tobirama, was appointed the Senju clan was basically down to only a handful of cousins, but now...

The only one who can be called a Senju is Tsunade.

However, Keiichi did not have the surname of "Senju", so it's not like he could enjoy nor inherit the status of the Senju family.

Though Tsunade hadn't been able to use 'Senju' as her surname till she was powerful, Kanda Keiichi absolutely can't enjoy any benefits from using the Senju name.

Keiichi could even estimate that the Senju bloodline within his body wasn't at all that strong. So that meant no sage body, talent, or wood style for him. Not even mentioning that he was a sixteen-year-old Chunin.

All up, Keiichi was very worried about his future.

If things go on like this, it is doubtful that he will live to see the end of his life. After all, Konoha will face various disasters in the future - the Third Great Shinobi War, the Night of the Nine-Tails, the Konoha Crush, etc.

Being a Chunin, in the face of those enemies, would only be a fools' errand.

Even if he survived, the aftermath would surely kill him.

"If we can get some of Hashirama's cells later, I might still have a chance to master Wood Style as I might be comparable as my body should hold a trace of the Senju bloodline."-Keiichi said to himself.

The ninja world is too dangerous. If you don't get stronger, you are simply waiting to die.

As he was still thinking this over, the bell rang outside.

The break time before class had ended.

"It looks like it's time for me in the next class."

Keiichi is in charge of teaching the "Ninjutsu" class.

He didn't understand why he was teaching it, but after asking around, it seemed that his predecessor had died on the battlefront, and the position had been vacated by a temporary recruit.

Therefore, Keiichi became a trainee teacher to fill the gap.

'Well then, let's go to class.'

'It's not like the Ninjutsu classes at school are difficult anyway, the Three-Body Jutsu would be enough to fool the kids.'-Keiichi thought to himself.

He was just getting up when a strange voice rang out.

It was hard to hear for him at first. But.....Very quickly he understood what it was.

[The Mentor system has been activated]

[Activation successful!]

[Teach your students with dedication and you will be rewarded with additional rewards for becoming a life coach.]

[There is currently a novice gift package, do you want to receive it?]

Mentor system?

Newbie gift pack?

What is this?

Is it a gift package for his new job?

Keiichi was stunned for a moment, then quietly said, "Yes, please receive it!"

[*Ding* Your three-body technique proficiency has been raised to the highest level.]

(The Three-Body Jutsu are three basic Jutsu you need to learn before you graduate as a genin. These include; Transformation, Substitution, and Clone Jutsu.)

[You received: bloodline purification. Your bloodline has been purified and upgraded to the bloodline of a Senju clan, and your physique has been greatly improved.]

[Your earth affinity and water affinity effects are enhanced.]

In the corridor, Keiichi newbie gift from the system had given him a lot of usage and knowledge about the three-body technique in his mind, before causing his blood to boil.

He can be sure that his body temperature is soaring.

Is this an effect from the purification?

He was a little stunned at first, but then there was a burst of ecstasy.

His bloodline was improved to that of the mighty Senju clan!

Just looking at his body, the improvement of physique, earth, and water is obvious.

In addition, a strong physique also mean that his amount of chakra has increased in both quality and quantity. There will surely be even more benefits from this reward in the future as well.

Not to mention, Keiichi also has still has this "Life Mentor System." With the newbie gift package being so powerful Keiichi couldn't wait to earn his own reward through teaching. Maybe if he works hard he'll get the chance to gain a sage body or even the Rinnegan in the future.

With this system, I can survive in the ninja world.

Keiichi couldn't help but be excited.

"Hold on, I shouldn't lose my sight yet, as I don't truly understand what the mentor system is like yet."-He thought to himself.

From the system prompt, as long as you teach your students carefully, you can get rewards, but it has also mentioned that you can get more rewards by becoming a 'life mentor'.

However, What is a life coach?

Keiichi thought about it again and again, but decided to not think about it so much, and went to the classroom to think about it after class.

'Lets look at who my students are.'

After his bloodline was purified, he quickly noticed a change in his physiology. He was able to walk much faster!

At the door of the classroom, he saw a familiar person.

Uchiha Obito.

Huh, what's this guy doing?…....

"Are you Uchiha Obito?"

"Yes, teacher."

Seeing Keiichi, Obito was a little uncomfortable, standing and squirming a little at the door.

"Come in and sit down."

There's no need to think about what happened. Obito must have been late to class.

After entering the classroom, he saw many familiar faces.

Rin, Kurenai Yuhi, Asuma, but also, Shisui, Anko, and Gai were in the class.

'Is this some kind of AU?'

(Age differences explained below)

Konoha was short-handed during the war.

Many of the full time teachers were moved to the front line, so those who were not too different in age from the Shinobi school were combined to teach.

This was a temporary policy and there was nothing that could be done about it - including the temporary recruitment of Keiichi.

"Hello everyone, my name is Kanda Keiichi, and I'll be your ninjutsu teacher for now."

"Sensei, I heard that you just came from the battlefield. Can you teach us some practical Ninjutsu?"-Obito shouted as soon as he saw Keiichi enter the room.

This child was not afraid of life.

The first thing you should get to know should be a good idea of what you getting into. But apart from him, Kurenai and Rin were also curious about their new teacher who had come down from the battlefield and had a few moments of anticipation in their hearts.

Everyone in that classroom had thoughts of graduating early.

So, learning about the battlefield and all the new Jutsu was something they had been looking forward to.

However, of the Jutsu that Keiichi himself has mastered, apart from the Three-Body Jutsu there are only Shadow Clone, Body Flicker, Water Wave, and Water Wall, which are impossible to teach to the children yet... But he had a plan.

He looked around with a smirk and said, "Do you think that you are already fully qualified in the three-body techniques that you don't need to practice them at all?"

No one answered, but the expressions on the faces of all the children showed that their innermost thoughts were that they were in self-praise.

"If I feel you can meet my standards, then sure what harm will it do if I teach you a new Jutsu?"-Keiichi smiled.

He was more than capable of teaching them with his full level three body techniques.

A bunch of little kids who want to run before they learn to walk?

"Let's go to the training field."

"Yes!"

They all arrived at the school's nearby training field. Keiichi's eyes scanned the students.

There were a lot of geniuses here, but, in terms of overall strength, Obito was currently at the bottom although in the future he might be the strongest, right now he just didn't have the Mangekyō Sharingan yet.

Apart from him, the strongest would probably be Shisui.

"Obito, Shisui, you come up here."-Keiichi said aloud.

"Yes sensei."-Obito went to the middle of the training ground with vigor.

'One against two?'-Shisui followed Obito's lead while thinking to himself.

"Together, you both will attack me with all your might!"-Keiichi challenged.