The Most Generous Master Ever - Chapter 32 - Red Lotus Karmic Flame

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

First World : CampioneCurrent - Second World: High School DxDThird World: ???Reincarnated into the world of Campione! Haru Kasugano, our hero slays gods and ascends as the mightiest Godslayer. He battles powerful God-Kings and Campiones, claiming victory after victory. Whatever it is. [Wealth, Power, Beauty] he has it All. Watch him grow stronger as he travels into new realms like High School DxD and the Fateverse, leaving a trail of defeated gods and captivated hearts in his wake.

Qin Guanglin is a regular guy living a cautiously regular life. Apart from his freelance job as an artist and his hobby of gaming, nothing has ever been out of the ordinary for him.However, when he meets a mysterious gamer girl offline, he is immediately blown away by how perfect she seems to be for him.Is it all a coincidence, or is it fate? He realizes that there is so much more to life than just staying in his own comfort zone.This is a tale of lost and found...

The story is about a boy entering high school, who answers a strange call from a public phone one night. The caller challenges him to a bet: She’ll remove the birthmark which he sees as the cause of so many problems, and he’ll have fifty days to win the heart of a girl he’d considered far beyond his reach. And with this, a very strange summer begins.