Despite his kind face and good reputation, Ha-Yun's hobby are one-night stands. One day, he becomes captivated by Seo-Jin, a new member of his club, and decides to try sleeping with him. Contrary to his thuggish appearance, with his tanned skin, muscular build, and bright yellow hair, Seo-Jin is the epitome of innocence. Ha-Yun manages to break through his innocence and have a one-night stand with him, but the next day, he tries to sort things out... *"I agreed because I like you, hyung." "This is my first time dating."* How can he get this out of his head...? (Source: MrBlue, translated)