Giri no Imouto to Kekkon Shimasu
義理の妹と結婚します
After his father's remarriage, Takuro Matsubara finds himself with a new step-sister, Toko Konoe. From their first encounter, he confesses his attraction to her, stating he may view her in a sexual manner. However, Toko forms a poor initial impression of him, and their relationship begins with Takuro at an extremely low favorability standing.