Tasogare no Hito  

誰そ彼のひと

The narrative of the manga revolves around the arrival of the president's relative in a small rural town. Their son, Tatsuomi, is struggling with various issues that lead him to contemplate suicide. However, he is discovered by Riko, a local girl who despite his troubled state, tries to befriend him. Over time, they develop a close bond. As Tatsuomis birthday nears, Riko presents him with a gift and makes a specific pledge.