Everyone's body goes through changes at some point in their lives, but Satsuki's situation is anything but normal! As the daughter of a vampire and a succubus, Satsuki's carnal cravings start to grow as her body demands fluids from those around her! Luckily, she has her childhood friend Kazuma watching her back to make sure she doesn't cross the line, but quick licks of sweat are no longer cutting it. Kazuma suggests semen could curb her appetite, and is willing to take one for the team, but he might soon regret his offer once her demon switch is flipped!