Urinating while fully clothed is a setup that maximizes the appeal of the "accidental leakage" fantasy. The girl drinks a beverage, testing her ability to hold it in, but as time passes, she reaches her limit. At that moment, she straddles a prepared washbasin and lets herself go, peeing in her panties. The urine seeping through her panties is visibly colored, and the sight of her holding the basin filled with her own pee, her face flushed with shame, creates an erotic and shocking scene. Performed by Tenma Yui, this scene exudes a unique charm, blending physical restraint with intense emotional conflict.