FNS-097 Earth Destruction Countdown 1 Day: The Useless Man's Only Wish is to Destroy the Big-Breasted Hot Sister Next Door, Ranran Fujii.

The loser man's only wish is to have sex with the busty hot girl next door until his personality collapses. The story takes place on the last day before the Earth is about to be destroyed. In order to fulfill his wish, the loser man embarks on a series of absurd and erotic actions. Against the backdrop of the end of the world, how far will the story between him and the busty hot girl next door develop?