Megachu 1

Kosuke is a very normal Otaku who has nothing bad in mind. But one day he meets 3 from Heaven coming pretty goddesses who are trying to kill Kosuke.

It’s turns out fast that he is bearing in themselves a seed of a Demon King. This Demon itself is growing stronger when he has perverse thoughts.

The only method to stem this is the absorption of the Dirty Energy through the goddnesses.