Kokan Musou ~Kiraware Yuusha wa Mazoku ni Aisareru~

Story:

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.