じつは義妹でした。~最近できた義理の弟の距離感がやたら近いわけ~ (Series) favorite_border

[DeepL Translation - needs review] Volume 1: Siblings' flirtatious love comedy that begins with a misunderstanding! Comicalization of a very popular novel! Akira, my younger brother-in-law, was born to me as a high school student when my parents remarried. Because of the complicated family environment I grew up in, he is a beautiful boy but shy. I had always longed to be a "little brother, I always spent time with Akira playing together, But it turns out that we are brother and siste...