Ore ga Kawarini Sakyubasu Yatte Yaru!!

Yuma Kakunai, a man who enjoys crossplay, saves a succubus named Lizlit from being hit by a truck. In doing so, he dies, but Lizlit binds his soul to her body to save him. Now inhabiting the succubus's body, Yuma discovers that Lizlit used up her magic and needs to absorb a man's virility to turn him back. Yuma decides to take on the role of the succubus himself, first exploring his new female body through masturbation, and then picking up a man to gather life force. Yuma, inhabiting Lizlit's succubus body, continues to have sex with the unnamed man, experiencing intense pleasure and absorbing his magical energy through his semen. After the act, Lizlit reveals that the energy from just one person isn't enough to return Yuma to his original body, meaning they will have to continue this process with more people.