Kokan Musou, 股間無双嫌われ勇者は魔族に愛される, 股間無双, Guerrero de la Entrepierna ~El héroe odiado que es amado por los Demonios~, Unparallelled Groin ~The Hated Hero Is Loved By The Demons~

Kantaro is reincarnated in a different world after having ascended to the heavens due to excessive orgasming. However, he realizes that his crotch produces a cloudy white potion that can heal anything. It also has the effect of powering up the demon race, and the demon race is courting him. It's a great way to get to know the people you're working with.