Office lady Ai Mukai is driven by her masochistic desires, harboring an intense longing to be thoroughly dominated and abused by someone. Craving training beyond her limits, she sends an email to her boss pleading, "Please train me." Her words carry a sense of dependency, almost like a submissive plea, concealing deep, profound yearning. She messages her superior: "Master, what should I do? I'll do anything. Please crush this filthy female dog and cast me into the deepest abyss." Her desire isn't mere lust—it's an impulse buried deep within her heart, hidden from everyone, a quest for unknown pleasures that lie beyond.