MTL - Throne of Magical Arcana - v9 Chapter 6 accident

An ordinary student accidentally traveled into an other universe and became the king of a small kingdom. He had gotten a “Cheating Code” of life and was able to complete something extraordinary. This is the story about a king that was able to conquer continents and leave behind him an ultimate legend that will be recited between every generation to come.

- Description from novelupdates

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

“When I left you, it wasn’t because I was materialistic.”

“I know.”

“He doesn’t love me. I already broke up with him.”

“I know.”

“You knew? I didn’t know you were still so concerned about me…”

“I know because he and I are now a couple.”

This is a story about how a poor loser turned into a tall, handsome and rich guy and snatched his ex-girlfriend’s current boyfriend away.

- Description from Novelupdates

After Reincarnating into Naruto World at the Warring State Era as an Uzumaki, Masahiko thought that he got a useless System. He lived for 48 years as a normal, below average Uzumaki Shinobi.

That changed when he finally knew how the system works the day of his 49th Birthday!

- Description from Novelupdates