In prison, ejaculation is strictly prohibited. Kaede, a tall, beautiful-legged female guard, tightly controls the inmates' semen. All prisoners are sex offenders, and not a single drop of their sperm may be released without permission. Kaede taunts them, saying, "Such lewd stares... are you that desperate? Then jerk off while licking my legs," forcing them into face sitting and handjob sessions. She also engages in rough sex with rapists, and inmates line up for mandatory group ejaculation checks. They are repeatedly forced to ingest semen, and upon nearing release, a special reward sex session awaits. The prisoners can no longer endure Kaede's stunning tall figure, gorgeous legs, and beauty, driving their cocks to the brink of breaking.