Brothers are not friends, brothers also attack

Sun Xiaowei's mother is going to remarry, not only has a new father, but also a younger brother as a gift - Yu Jinzhun's stepfather asked Sun Xiaowei to "take in" Yu Jin to his company for training.On the first day, Sun Xiaowei even planned on Yu Jin, wanting him to retreat in the face of difficulties and go away. The two people who disliked each other started a fierce competition. On the advice of good friend He Dabao, Yu Jin moved into Sun Xiaowei's house, and the cohabitation life began. To be brothers, or to be friends, or to be lovers?Sun Xiaowei has a headache... This is the story of a straight man who was turned into a loyal dog, and a black-bellied attack turned into a shou (*^__^*) : Protagonists: Sun Xiaowei, Yu Jin┃ Supporting actors: Luo Wen, Dong Jian, Kavin, He Dabao