Hana Kizaki, who is about to graduate, falls on a banana peel and meets a rather Showa-era end. For some reason, she is unable to ascend to the afterlife, and when she wakes up, she finds herself in a strange man's room. She is completely naked and unable to move her body freely... A busty beautiful girl has been reincarnated as a masturbation aid, and against her will, she becomes a tool to satisfy the man's sexual desire...! She shakes her J-cup breasts as she pounds him with her piston-like movements! The man can play with her as much as he wants!! An endless loop of masturbation support with a busty beautiful girl as an adult toy!