DRPT-073 A beautiful office lady, Kozue Minami, who was so thoroughly trained that her rear end could no longer close properly on a crowded train

A curvy office worker spotted on a crowded train undergoes daily training over several days, and what was once very tight gradually becomes more relaxed. She grows into someone with a fully loosened, open expression, and her transformation is striking. Her reactions as she is overwhelmed and loses composure are a must-see.