Gitei (Ototo) Ni Kyuai Sareteimasu (Asuka Comics CL-DX)

[Machine Translation] A super love story between a black-hearted brother-in-law and a cowardly brother-in-law! Atsushi's brother-in-law, who was born after his parents' remarriage, is so cute that he has grown up to be a "super handsome black guy" as a result of the love and affection he poured into him as a stepbrother from an early age. His brother-in-law Tatsuomi, who secretly has a crush on Atsushi, decides to give up his love for him and leave home to get a new job and get away from Atsushi. However, as soon as Tatsuomi finds out, Atsushi's attitude changes drastically and he becomes angry, and Tatsuomi is pushed down. Tatsuomi is upset, but then Atsushi declares to Tatsuomi that he will leave his brother...? ---I realized it. I realized that I don't want a brother, I want a lover. A love story between a black-hearted brother-in-law and a cowardly brother-in-law.

腹黒な義弟×臆病な義兄が贈る超ブラコン・ラブ!親の再婚で出来た義弟が可愛すぎて、義兄として幼い頃から愛情を注ぎまくって接した結果、今や「超イケメンブラコン」に育ってしまった義弟の篤。そんな篤に密かに片想いをしている義兄の達臣は、恋する気持ちを諦めるため、就職を機に家を出て篤から離れることを決意する。しかしそれを知った途端、態度を豹変させ怒りをあらわにした篤に、達臣は押し倒されてしまう。動揺する達臣だったが、その直後なぜか篤が「兄離れ」を達臣に宣言して…?―――俺、気づいたんだ。兄じゃなく、恋人ならいいんだって。腹黒な義弟×臆病な義兄が贈る超ブラコン・ラブ★描き下ろしも収録!