デキちゃう日に向けて、3日間の禁欲生活を始めた大河。しかし、絢乃を想像しただけで昂ってしまい自制心が危うくなって!?どうにか予定日の夜まで耐え抜いた大河だったが、駆け込んだマンションのエレベーターで帰宅途中の絢乃と一緒に!!「大河くん、待って…部屋まで…」絢乃もまたデキちゃう日のための禁欲生活のせいで昂っていた。2人は玄関を開けるなり、互いを求めあって…。
Taika goes celibate for three days in preparation for the day of trying for a baby. However, he's unable to keep his desires under control just from thinking about Ayano. Managing to hold back until the very night, he rushes into the apartment elevator, bumping into Ayano, who was on her way home, also with the same thing on her mind. Unable to wait any longer, the two open the front door and start making out...