Akai Ito no Shikkou Yuuyo赤い糸の執行猶予 (Japanese); 红线的缓期执行 (Chinese)

College student Keiji possesses the dubious talent of being able to see the red string of fate. One day, he suddenly notices a red thread tied to his own finger! He is tickled pink on catching sight of it and immediately follows the thread, but the thread leads to his own kouhai called Hiro!!…“My soul mate is a guy!?“