4-Thousand Fold Man4000-Bai no Ootoko; 4000倍の男; 4-Thousand Fold Man; 4000倍的男; Четырёхтысячекратный парень

When you wake up after hitting your head, your sex drive will be multiplied by 4000?!Seigo Hasegawa, a man who has suddenly acquired a cheat sex drive, and his childhood friend An Yagami, who feels responsible for Seigo and tries to help him (sexually). The battle between Seigo and his sexual desire begins now... (MTL)