Even when captured by the enemy, the aloof, blond investigator glares defiantly; he is brought to orgasm by a black man's massive penis and torture-level piston-like movements; even when his body is satisfied by a Japanese man's thick penis, he will not succumb to his inner desires. (Natsume Hibiki START-454)

Hibiki is an undercover investigator working in partnership with a junior investigator. They infiltrate an organization producing QoS videos—illegal videos featuring NTR (Netorare) sexual acts involving Black men. On the day of the mission, due to her junior's mistake, they fall into a trap set by a Black member and are detained. Despite her continued resistance, Hibiki is anxiously experiencing intense pleasure. For her lovely junior, and for her mission, can she endure it…!?