Yuichi was always drawn to Nao, his mother's best friend who dressed provocatively and oozed sensuality. Nao, whose marriage was on the rocks, would sometimes come over to vent her frustrations, but this time Yuichi's mother was out, leaving him to listen to her complaints. Gradually, Nao's ranting took a strange turn, creating an eerie atmosphere. Then, with a seductive smile, she whispered to Yuichi, "Let's keep this between us."
