The Junior Girl Who I Recently Rejected Has Become My Step-sister
Saikin Gimai ni Natta Kouhai ni Otosaresou / Saikin Kokuhaku o Kotowatta bakari no Kouhai Joshi ga Gimai ni Natteshimatta / Saikin Kokuhaku wo Kotowatta bakari no Kouhai Joshi ga Gimai ni Natteshimatta / 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 / Saikin Kokuhaku wo Kotowatta Bakari no Kouhai Joshi ga Gimai ni Natte Shimatta
Rated 16+ Ongoing Released: 2023
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.