From Tappytoon:
Cheng Sheng, the secretary and lover of Wei Hongze, is caught up in a dilemma when Hongze is suddenly shot to death. Hongze’s will states that Sheng shall be the one to choose his successor among his sons, Wei Tianheng and Wei Tianchu. But these two are polar opposites. Apart from their drastically different personalities and careers, Tianheng is rather hostile toward Sheng, even believing he had something to do with his father’s murder, while Tianchu is overly affectionate toward him. But as time goes by, Sheng will learn that there is common ground between these brothers, with him being right at the center of it…

Original Manhua:
AC.QQ, BiliBili, KuaiKan

Official Translations:
Korean: KakaoPage, Ridibooks, Naver Series, Bomtoon