My Multiverse Selves Grant Me Power

Bai Mo, a sickly time-traveler, is stuck running a dingy internet cafe in a dangerous world of dragons and hidden elites. Powerless and ordinary, he's just a bystander in a looming supernatural war. But then, a mysterious 'Door of Truth' opens, connecting him to his parallel selves across the multiverse! A ninja master from Konoha, a genius scientist from the One-Punch Man world, a powerful mage from Conan’s timeline – all of them are him. Instantly, their vast, disparate knowledge floods his mind, transforming a frail human into a walking library of superhuman capabilities. Now, armed with cosmic intellect, Bai Mo begins his quiet rise, starting with a deceptively simple takeout empire. But the price of this omniscience is absolute memory, an unending stream of pasts and presents that threatens to shatter his mind unless he finds a way to transcend existence itself.