Hinano listens to her married friend complain about a husband who still acts single and never stops chasing women. Determined to straighten him out, she confronts him, but he keeps blaming his behavior on his enormous cock. She challenges him to show off this supposedly impressive package so she can teach him a lesson. The cock that appears is far bigger than she imagined. Already sexually frustrated, Hinano feels her body heat up and ache until she can think of nothing else.