You are an adult young man, who has finished school. You are on a vacation now. After the long journey, your older sister Ann comes home. You see how hot she is and start to come up with a plan how to ... I think you know what I mean.

This game is a 2D first person hentai game where players play as the busty pig tailed Maiko Umiya. During the game, while living her normal life, Maiko unknowingly trains herself to survive a fight that previously killed her in the future according