Yusuke Nakanishi joins Best Beauty Body Incorporated as a new Section Chief, secretly tasked by the President's son to dismantle the Vice President's faction from within. Upon discovering the company's culture of exploitation and sexual harassment, Nakanishi intervenes to save a woman named Alice from a predatory client. While he secures Alice's loyalty and affection, his bold interference immediately makes him a target for the company's corrupt leadership.
Yusuke seeks the help of Chisa Sakurai from the R&D department to finalize a new line of seamless lingerie. By using coercion and blackmail after catching her in the office after hours, he forces her to create the necessary samples. As Chisa uncovers a corporate hacking scandal involving high-level executives, she unexpectedly finds herself succumbing to Yusuke's advances, blending professional tension with illicit passion.
As a hostile takeover plot unfolds through corporate espionage and coercion, the company finds unexpected success with its new seamless lingerie line. Despite being framed and forced to resign, Mayumi Nakanishi provides the critical evidence needed to expose the corruption of Zaitsu and Miki. With the villains deposed, Nakanishi ascends to a leadership position, securing the company's future and her own ambitious goals.