A series in which a bloomer-loving old man makes beautiful girls who don't know what bloomers are wear them and films them. This time, we have Mayuri-chan, a shy beautiful girl with an E cup, a waist of 55, and hips of 88, which makes for an erotic curve. She has a gentle atmosphere and appearance, but when she is teased, she immediately soils her bloomers with her urine! This bloomer girl is confused by the old man's pranks, but she starts to feel it.