Mio Mio, an F-cup busty student from Shima-nchu, who loves to sing and has been devoted to her boyfriend, makes her AV debut and has her first ever creampie! In a T-front swimsuit, she gives a lotion-covered blowjob, masturbates, is tied up, has a vibrator fixed in place, is blindfolded, and has sex in a camisole and striped panties. Everything is a first for her! In the end, she becomes a helpless woman who is entranced by the pleasure of being creampied... I'm sorry, Yoshi-kun, my boyfriend.