Although Chiharu is an honor student, her hobby is to hide from her family and indulge in fantasies by watching adult videos with older male actors. One day, she decides to invite Kai, an older man she met on social media, over to her house. Watching Kai masturbate while looking at Chiharu's panties, Chiharu finds his comical appearance amusing, so she teases him, gives him a blowjob, and strokes his dick with her feet in her pure white socks, getting covered in semen. Since then, she has become addicted to doing lewd things with older men...