Shinji who was able to remove her bra at first for the first time is a female distrust because of that. One day, Shinji who saw the SEX capture book secretly practiced with her brother-in-law, Rina Nana. Shinji who regained confidence little by little, swaying big tits and doing housework cares anxiously

初めて出来た彼女にブラが外せずフラれたシンジはそれが原因で女性不信。そんなある日、SEX攻略本を見たシンジは同居する兄嫁・菜奈実のブラで密かに練習をしていた。少しずつ自信を取り戻し、巨乳を揺らし家事をする菜奈実が気になって来たシンジは思わず抱きつきその胸を揉みブラを外そうとするのだが…失敗！実践不足！