S1's intelligent beauty Rie Miyagi is subjected to her first complete restraint experience, thoroughly dominated and brought to climax. Her beautiful, elegant face is locked in a neck brace, taking powerful facials directly as she's helplessly overwhelmed and physically tormented. The highlight is her repeated, massive squirting orgasms. Her thick, voluptuous lower body is also restrained, as relentless piston-like thrusting continues, her bouncing ass gripped and used like a masturbation sleeve, plunging her into uncharted pleasure. Through this experience, she's driven endlessly toward climax after climax, awakening completely as a true masochist. Witness her transformation in this unforgettable scene, delivering both intense guilt and arousal—an ultimate experience not to be missed.