Saikin Kokuhaku wo Kotowatta Bakari no Kouhai Joshi ga Gimai ni Natte Shimatta最近告白を断ったばかりの後輩女子が義妹になってしまった; The Junior Girl Who I Recently Rejected Has Become My Step-sister; Saikin Kokuhaku wo Kotowatta Bakari no Kouhai Joshi ga Gimai ni Natte Shimatta

Saikin Kokuhaku wo Kotowatta Bakari no Kouhai Joshi ga Gimai ni Natteshimashita is a web manga released on the author's Twitter account since September 9, 2022. The series has been published as doujinshi since December 31, 2023, when the first volume was released at Comic Market 103.