ひょんなことから年齢不詳で若すぎる見た目の人妻・久慈希美と出会い、一晩を過ごしてしまったツヨシ。
それ以来、一緒に缶チューハイを飲む仲に。
そんな中、巨乳好きの夫に不満がある希美から、貧乳の良さのレクチャーを受けることになり…
By chance, Tsuyoshi ends up having a one-night stand with Nozomi Kuji, a married woman who looks too young for her age. Since then, they've become canned chuhai drinking buddies. In the midst of this, Nozomi vents out her frustration about her busty-loving hubby, and Tsuyoshi gets lectured on the appeal of small breasts...
