My Brother Became the King of Hell: Now I’m Invincible

Ensemble cast, no CP, invincible protagonist, feel-good power fantasy, an alternate world focused on the modern city, no harem, no mindless plot. The protagonist, Yi An, has a mysterious identity. All he knows is that he has lived for a very, very long time, has a good brother named Xie Bingwen, a divine beast raised into a giant cat, a master hidden deep in his memories, and an ordinary family once blessed by that master. He's lived too long, so whenever he's bored, he transmigrates into a new life for fun. (The transmigration tag was added by mistake.)