Tensei Saki wa Kaifuku no Izumi no Naka ~Kurushikute mo Shinenai Jigoku wo Norikoeta Ore wa Sekai Saikyou~

A tale of the strongest adventure that starts from the worst! One day, Elvis is suddenly reincarnated as a child in an experiment of the gods, and is reborn in the "Fountain of Recovery"! He lives an infinite hell where he cannot die even if he drowns, but when he wakes up, he has acquired extraordinary abilities!