Mio has taken a part-time job to pay her adult son's tuition and has begun falling asleep on the sofa from exhaustion. Worried she will catch a cold, he approaches to carry her to bed, but a sweet, tangy scent catches his nose. The instant he smells it, his body grows hot and he craves a stronger dose. Driven by impulse, he searches beneath her clammy clothes for the source and begins groping her sweat-soaked body.