Maokin ~Joshikou Kyoushi no Ore no Kintama ni Maou ga Yadotta Ken~

A demon lord has taken up residence in the balls of Nakata, a male teacher at a girls' school. If he ejaculates, the demon lord will be unleashed and the world will be destroyed. Furthermore, girls manipulated by magic seduce Nakata. Will Nakata's reason and crotch, which carries the fate of the world on his shoulders, be able to withstand it?