The fair-skinned, slender married woman, Fumino Mizutani, has her body tied up in a hexagonal knot, and is allowed to do whatever she wants on behalf of her husband! The curious Mizutani is so curious that she is suddenly tied up in a hexagonal knot, and says she would never do it with her husband... She forgets about her husband and indulges in a passionate moment. She experiences pleasures she has never experienced before, and opens up new sexual horizons!