Koharu Shirozaki, a member of the idol group StellaResta, finds her life spiraling out of control when she is blackmailed into a sadistic relationship with the dominant Kurozuka Atsuya. Despite her love for her manager and her desire to maintain a pure image, Koharu is gradually broken down and lured into a world of underground sexual humiliation. As she develops a dangerous addiction to her tormentor, Koharu begins leading a double life, masking her secret masochism behind her sparkling idol persona.
Koharu, a rising idol in the unit StellaResta, finds her dreams and devotion to her manager shattered when she is coerced into a submission-based relationship with the manipulative Kurozuka Atsuya. Despite her guilt, Koharu becomes addicted to the pleasure and power Kurozuka wields over her, eventually leading her to a depraved underground world where she must balance her public image with her secret, tainted life.
Following a successful performance, Ibuki is targeted by the sadistic music producer Kurozuka Atsuya, who uses a scandalous leak to blackmail her into a predatory sexual relationship to protect her teammate and manager. While Ibuki is trapped in a cycle of coercion and psychological torment, a shocking revelation emerges regarding Koharu's own secret and willing involvement with the producer.
After a successful performance, the idols of StellaResta face a crisis when a tabloid threatens to leak damaging information. Music Producer Kurozuka Atsuya reveals himself as the source and uses the threat to blackmail Ibuki into a sexual relationship to protect her teammate Koharu and their manager, Matsunami. As Ibuki suffers under his cruelty, it is revealed that Koharu has also fallen under Kurozuka's influence, creating a toxic dynamic of obsession and control behind the scenes of their idol careers.
Alisa joins the agency just as Ibuki is coerced by Atsuya into participating in a depraved underground competition for struggling idols. Alongside other desperate girls, Ibuki endures a series of humiliating and sexualized challenges, eventually winning the tournament through a grueling final race. However, her victory leads her straight into the VIP room for a mysterious reward.
Coerced by Atsuya, Ibuki Asaba is forced to participate in a depraved underground competition featuring other struggling idols. The girls endure a series of sexually explicit games and humiliating challenges, culminating in a high-stakes "pussy derby" fueled by aphrodisiacs. Although Ibuki ultimately emerges as the winner, her victory leads her directly into the hands of the organizers in the VIP room.
Matsunami is forced to confront the dark reality of the idol industry when he discovers that Koharu, Alisa, and Ibuki have fallen under the corrupt influence of Kurozuka Atsuya. After witnessing the girls' complete submission to Kurozuka's sexual manipulation and desire, a devastated Matsunami watches as Kurozuka launches his new agency, Venus Pride, and debuts the provocative group AbisStella.
Matsunami is thrust into a nightmare as he discovers the dark corruption lurking behind the idol industry. Koharu and other aspiring stars have fallen under the manipulative control of Kurozuka Atsuya, who replaces their dreams with raw desire and submission. Forced to witness the degradation of the girls he once supported, Matsunami watches helplessly as Kurozuka unveils his new agency, Venus Pride, and the debut of the group AbisStella.