When he got a girlfriend, his childhood friend, he confessed his feelings to him. When his girlfriend told her best friend that she had a boyfriend, her best friend smiled awkwardly. Because she fell in love with him. Later, the two of them discovered that he only had his childhood friend in his heart. Her sudden serious illness separated them, but in the end she hoped that the two of them could be together, but he could not get out of this haze and stayed away from him.