My Seatmate Tries to Make Me Fall in Love with Her by Teasing Me Repeatedly, but Somehow She Was the One Who Fell - Chapter 21: Rank #1

One day, when a novelist woke up from a restless sleep,he realized that he had transformed into his 12-year-old self.

A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.

At Divine Wind Continent, there is cultivation system—douqi, illusion and magic.

Ren Tian You was a fan of Naruto, and a single moment of carelessness caused him to arrive in different world.

Unexpectedly, only to discover that his body possessed Naruto system!

What? You will use douqi! I, your father’s taijutsu is also not weak! Look at my shadow dance!

What? You will use illusions! I, your father however have every illusions’ ancestor, Sharingan! Look at my Tsukuyomi!

What? You are a magician! I, your father am a ninja! Look at my fire style——– grand fireball!

- Description from Novelupdates

I was a genius in the Earthen Plane.