Crotch Warrior ~The Hateful Hero Is Loved by Demons~Kokan Musou ; 股間無双～嫌われ勇者は魔族に愛される～ ; 股間無雙～被討厭的勇者卻被魔族所愛～ ; Kokan Musou ~Kiraware Yuusha wa Mazoku ni Aisareru~

Kantarou, who has ascended to heaven because he is too sick, reincarnates in a different world. Kantarou, who is distorted in character and is a fatty, is disliked even after reincarnating, but notices that a cloudy potion that cures anything from his crotch appears. Moreover, it also has the effect of powering up the demons, and it will be loved by the demons ...!? A different world reincarnation fantasy that is unmatched in the crotch !!! (Google Translate)