Humiliating scenes of arousal at a riverbank. Collapsing during a trip and taken in by a local inn, she witnesses an unbelievable sight. The inn's proprietress, dressed in a long under-kimono, is suspended upside down and whipped by a servant. This lewd and seductive spectacle awakens a deep ache within Rei's body. Under BDSM instruction, she surrenders herself to a state of blissful ecstasy.