New office worker Rio Miyachi is blackmailed by Hashimoto, her breast-obsessed pervert boss, and ordered to wear thin clothes without a bra so her J-cup breasts remain exposed around the office. Forced into humiliating sexual tasks for his pleasure, she repeatedly climaxes under his obsessive nipple play until her daily life and judgment unravel. Coworkers and other managers stare at her bare breasts as shame and breast-induced orgasms overwhelm her resistance.