Yuzu, a schoolgirl, fell in love with a perverted uncle, ran away from home, and started living together at his house. The uncle is a pervert who gets excited by strangling her with a sadistic personality, blaming Yuzu while loving her with restraint, deep throat, and spanking. Yuzu, who loves such an old pervert and cannot help but feel good every day during training, lives together with Icharab.