Naruto: The Strongest Kakashi - Chapter 351 - 351 Mangekyos Reappearance

The main character Lei Yu does not have the ability to practice his family’s martial arts. He gets stepped on and tossed around. Due to certain reasons, he leaves the family, coincidentally gains an ability, and makes his own path to becoming an immortal.

- Description from Novelupdates

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?

In the City of Crime, one law stands above them all: Only the strongest can live.

‘Royal Roader,’ the game that I ruled as an overlord was ending its service. Shit! It was my life’s only pleasure.

The last day! I used all of my strength and in-game connections to defeat the final boss monster, Demon Heros.

As a reward, I earned a Marble of Wishes.[Please state your wish.]My wish? [Royal Roader’s renewal as reality.]I was just joking. I really only wrote it as a joke…