SSNI-866 I couldn't resist seeing my brother's wife's bra that was wet and exposed, so I spilled it all on the dusk of a torrential downpour. Tsukasa Aoi

Yuzuru ends up staying at his older brother's house in order to attend a prep school in Tokyo. Due to the stress of taking entrance exams, he becomes conscious of his older brother's wife, who is kind and beautiful. A few days later, at dusk, Tsukasa returns home from shopping, drenched by a sudden heavy rain. Yuzuru's wet hair, see-through bra, and adult sex appeal make Yuzuru unable to reason and unleashes her sexual desires on Gamushara.