Male submissives travel from across Japan to see Mio, a professional mistress with pale skin, a slender figure, and idol-like beauty. Her popularity comes from the unexpectedly harsh domination behind her sweet appearance. She teases them with an icy expression and rewards those who endure by making them swallow her saliva. While verbally humiliating them, she licks their nipples with her long tongue and strokes their cocks, then uses spider-cowgirl sex to control their orgasms. Her overwhelming technique thoroughly dominates the trained submissives and keeps them coming back.