[Reducing Mosaic]FSDSS-477 During overtime, a female employee named Natsu Igarashi was subjected to weekly breast harassment by her most hated boss, which improved her sensitive body condition to the point of immediate orgasm.

Natsu is unremarkable and inconspicuous, with a weak-willed personality that can't refuse others. One day, she starts dating Sato from the same department after he confesses to her. Usually, Natsu wears plain glasses and has messy hair, but once she becomes more alluring, the manager takes notice, and excessive sexual harassment begins the very next day… Unable to resist, Natsu gradually has her breasts developed and is trained to orgasm instantly, falling into a spiral of pleasure…