At Night, My Crazy Brother Used Me as a Chessboard

[Shuang Jie, the male protagonist criticizes the yandere, the female protagonist is a soft doll, forced love] Zhuang Zhou's illness was very serious. He had hated chess since he was a child and had to play chess. The environment in which he grew up made him half a gentleman and half a madman live in his soul. Shizi's mother was his coach and tried every means to train him into a big devil. But he was absent from the most important game. After taking office as CEO, he still couldn't lose his muscle memory. From then on, he became even crazier. Shi Zi's appearance was a blessing or a misfortune for him. I can't sleep without playing chess for a day. If I don't see her for a day, not only can I not sleep, but I will also go crazy.