Ms. Rena Sakaguchi, reprimanded by the vice principal for a mistake, is forced, as punishment, to perform oral sex in the gym storage room as usual. However, she ends up drenched. A male teacher witnesses this scene and summons her later. Told that she is being exploited because she cannot endure, she receives lessons in endurance. While being educated, she gradually becomes obedient and submissive, engaging in unprotected sex at their will. Subsequently, another male teacher joins in, and she undergoes restrictive guidance. In a room with bars, she is restrained and relentlessly tormented on her sensitive clitoris and inside her vagina. The male teachers stop whenever she seems about to climax, never allowing her to orgasm. Finally, she pleads, "Please, just let me climax once, I'll do anything, please let me climax..." turning into a desperate, lustful female dog begging.
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