Haruka is a shy and introverted high school girl who spends most of her time in the school's chess club. She loves playing chess and finds solace in the game's intricate strategies and complex tactics. One day, she meets a new transfer student named Takumi, who joins the club and quickly proves himself to be a skilled player. Despite their different personalities and backgrounds, Haruka and Takumi bond over their shared love of chess. They spend countless hours practicing together, analyzing games, and discussing strategies. As they spend more time together, they begin to develop feelings for each other. However, their relationship is put to the test when they compete in a prestigious national chess tournament. As they face off against some of the best players in the country, they must also navigate the complexities of their own emotions. Haruka struggles with her self-doubt and fear of failure, while Takumi grapples with the pressure of living up to his family's expectations. Throughout the tournament, Haruka and Takumi learn to rely on each other for support, both on and off the chessboard. As they face their opponents and their inner demons, they discover that the game of chess has taught them much more than just strategy and tactics. It has also taught them about the power of trust, perseverance, and love. In the end, Haruka and Takumi emerge as champions, both in the game of chess and in love. They realize that their relationship is not just built on their mutual passion for the game, but on their deep understanding and respect for each other. And as they embrace each other in victory, they know that they have found something truly special in each other.