Tokyo: Raising a Yandere Girlfriend Starts with Shogi

In his previous life, Takahashi Takashi, a professional Chinese chess player, died suddenly after staying up late playing chess and actually time-traveled to a poor junior high school student in Japan. What's even more outrageous is that he is bound to the weird "Shogi Love System" - Want to become stronger? Fall in love first. Want mission rewards? First train the target to be a female chess player. The first target, Karui Yusawa, was taught by him from scratch to a qualified female chess player in half a year. His talent was B+, which was barely enough. But three months ago, her chess skills hit a bottleneck, and Takahashi decisively left a breakup letter, unilaterally ending the master-student-cum-couple relationship. However, he didn't know that the gentle and well-behaved girl bit her lip after he turned around and swore with the pain of blood: Want to run away? The chessboard hasn't been cleared yet. What makes him even more troubled is his roommate Shimizu Ruri who has been living with him for three years. His shogi talent is S-level and the holder of the title of Onyunaza. In just two and a half years, his chess skills have crushed him, who has been a shogi player for two lifetimes. On the surface, he is a "middle-aged uncle in a beautiful girl's coat" who is lazily eating potato chips, but behind his back, he whispers in the corner of his quilt: "You are my thing." When the S-class yandere roommate confronts his evil ex-girlfriend, and when the secrets of the system gradually surface, Takahashi Takashi finally realizes that he has never been the one playing the chess game in life.