Mu Yue traveled to the world of Naruto and became an ordinary chuunin teacher at Konoha Ninja School and a member of the Root Organization.

Fortunately, after awakening the teacher system, you can become stronger by teaching.

In order not to become Danzo's consumables, Mu Yue worked hard to teach and increase her strength.

"Complete the teaching rated A for the first time and receive the reward - mastery of fire attribute chakra properties change."

"Under your guidance, this disciple has worked hard to practice, and his overall strength has been greatly improved, and he has been rewarded - the Immortal Human Body!"

From then on, there was a teacher in the ninja world who only wanted to make his students strong.

Shisui was not blinded by Danzo, and he successfully prevented Uchiha from annihilation.

When Metkai met the Seven Ninja Swordsmen, he no longer watched helplessly as Metkai opened the door to death and fought hard.

Obito defeated Uchiha Madara's conspiracy and did not turn into a psychopath. He was still the enthusiastic young man who was eager to help others and wanted to become Hokage.

(ps: There is a high-quality old book on Naruto with 21.78 million words, quality guaranteed)

When he was in Konoha, he started out as Tsunade's childhood sweetheart. This start required him to change his fate.

The tragedies of World War II and World War III, and the decline of Konoha, all disappeared.

I want to hold Tsunade's hand and walk step by step to the top of the ninja world.

Uchiha Madara, Otsutsuki Kaguya, come if you can!

Water, earth, fire, and wind. People who can control one of these elements are called firebenders. As a result, four nations and tribes were born in the world: Water, Earth, Fire, and Air.

Among them, only the Avatar-Avatar can master all four elements at the same time. It serves as a bridge between the four nations and maintains the balance of the world.

However, just a hundred years ago, the Avatar-Avatar suddenly disappeared. One of the four nations, the Fire Nation, launched a war of aggression against the other three nations, which lasted for nearly a hundred years.

At this time, Kahn traveled through time and became a young firebender...

[No system + multiple heroines + semi-invincible in the early stage + pure invincibility in the late stage]

(The heroine includes the fairy queen Erza, if you don’t like it, please don’t enter!)

Mo Bai travels through time and space to Fairy Tail, possessing amazing magical powers and eight Dragon Slayer Crystals. He encounters Makarov and joins Fairy Tail, thus beginning his adventure.

He annihilated the Dark Guild, single-handedly swept through Aedras, traversed the Eclipse Gate to annihilate Deliora and rescue Uru, overwhelmingly won the Grand Demon Tournament, and shone in various S-rank commissions...

Natsu: Hey, Mo Bai, come and compete with me! (Bang! He is knocked away by a punch)

Makarov: Looks like the guild will have a new S-class wizard with the youngest qualifications!

Acnologia: I sense the mighty power of a dragon from this person... Destroy the dragon! The dragon must be utterly destroyed!

......

This book is also known as "Fairy Tail: I, the Dragon Slayer, Eat Eat Eat Eat"

A former key server for a university volleyball team accidentally travels to the world of Haikyuu Shonen and restarts his life. This time, he is no longer willing to be that unknown key server. He becomes the team's ace, the absolute main force in the hearts of his teammates, and leads his teammates from Karasuno to dominate the country!!!

Tennis genius Ye Feng traveled to the world of Prince of Tennis. From then on, the world had a legend of a great devil.

He possesses an unrivaled body, strength beyond the limit, and an all-conquering spirit!

The five senses, the realm, the state of selflessness, the limit of repeated tempering, the limit of brilliant talent, the limit of perfection! Ashura Shinto!

Countless special moves will become even more powerful in his hands!

He knows what you know, and he has what you don’t have!

There is no strongest Ye Feng, only a stronger devil!

Starting from Rikkai University, Ye Feng's name will be imprinted in the Ganges of history!