A Yong is a reckless punk who liked everything with rhythm, fighting was one of them. His mood could only be soothed by a mysterious Demo music as his only spiritual sedative published on the Internet. When the gangster leader ordered him to watch over a girl kidnapped and imprisoned in a fishing boat of a fish farm. The girl tried to escape many times but was always stopped by A Yong. After they fought each other several times, A Yong was surprised to find out that she was the composer of that Demo. In order to escape, she pretended to be friendly and applied music as therapy for A Yong, but at the same time, both unknowingly changed in an awkward situation.—BL