I made a lighthearted promise to go out on a date with my student Sato after he graduated, even though there was nothing particular that I wanted to do or any plans set in stone. But then, out of nowhere, he started working harder than ever before, leaving me feeling like I couldn't back down... just this once, it won't matter if his wife finds out, right? And so, we kept our end of the bargain and went on a date after he finally graduated. Little did I know that things would turn out like this!

冗談のつもりだった。特にやりたい事もなく進路が決まらずにいた教え子の佐藤君が、卒業したらデートしてくれと言う。そんな事でやる気が出るならば…と、軽率に約束してしまった。ところがその日を境に見違えるように頑張り始めた佐藤君に引くに引けなくなってしまい…。一回だけだったらいっか、夫にもバレないだろうし。そして無事卒業した佐藤君と約束通りデートする事にしたんだけれど、あんな事になるなんて。