A cute, petite Japanese ninja girl, dressed in nothing but stockings and sandals, finds herself in a brutal wrestling match. Her opponent, unseen but relentless, lands punch after punch on her exposed belly. The girl, a skilled kunoichi, tries to fight back, but the belly punches are relentless, each one sending a jolt of pain through her body. The room is filled with the sound of flesh meeting flesh, the girl's stockings becoming increasingly damp with sweat as the intense ryona match continues.