Raised strictly, yet unable to stop the interests of a girl her age... one day she accidentally discovers the enchanting world of SM photo books and becomes engrossed in it. 'Mayuka,' who has a secret involving 'Tsuna,' spends her days wrapping hemp rope around herself for self-pleasure... Her desire to be tied up by her senior doesn't stop. 'Mayuka' makes up her mind and hands the hemp rope to 'Tsuna.'
