初老大家のワシが3年123日間掛けて、密かに目を付けていた隣に住む女子大生の弱みに付け込み肉体と精神の調教を完遂させた話

Tsubaki Sannomiya has been living a happy life alongside her boyfriend, but her life begins to collapse after her boyfriend had a traffic accident, and they begin to struggle for money. The pervert landlord notices the situation and he moves to exploit her weaknesses.