Fitch専属・木下ひまりと大人気サークル「多摩豪」が夢のコラボレーション！息子のイジメを認めようとしない安達に業を煮やした佐藤は、とある企てをする。それは安達をイジメること。イジメの辛さを安達自身に知らしめて、子供への躾を促す目論見だったが、事態はあらぬ方向へ。抵抗する安達のおっぱいに偶然手が当たってしまい佐藤の性欲が暴走、イジメの内容は徐々にエスカレートしてゆく。服や下着を剥ぎ取り、ついには強引に中出しセックス！！事後、自分の犯した過ちの大きさに恐れをなし、逮捕されることも覚悟していた佐藤。居ても立ってもいられなくなり、思い切って安達の家を訪ねてみると、そこで衝撃の光景を目にするのだった…。

Fitch's exclusive model, Kinoshita Himari, and the hugely popular circle "Tama Go" team up for a dream collaboration! Frustrated by Adachi's refusal to acknowledge his son's bullying, Sato devises a plan: to bully Adachi himself. His intention was to make Adachi understand the pain of bullying and encourage him to discipline his *****, but things take an unexpected turn. His hand accidentally touches Adachi's breast as he resists, causing Sato's sexual desires to run wild, and the bullying gradually escalates. He strips off his clothes and underwear, and finally forces himself on him, ejaculating inside him! Afterwards, terrified by the magnitude of his transgression, Sato prepares himself for arrest. Unable to bear it any longer, he decides to visit Adachi's house, where he witnesses a shocking sight…