The Junior Girl Who I Recently Rejected Has Become My Step-sister

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.