One is a girl who has just started working, and the other is a boy who has just finished his college entrance examination. One is mature and the other is still childish. One has a lively and cheerful personality. After getting together with the male protagonist, he thinks that through the efforts of the two of them, they can live together in the future. Therefore, he refused to go on a blind date and waited for the male protagonist to graduate from college. A man who has just entered college has lacked the warmth of his family since he was a child. He regards the heroine as the most important person around him. He has always wanted to escape from his hometown since he was a child. Under the influence of the heroine, he also becomes lively and silently works hard for the future of the two of them.
Concept: The relationship between siblings with a 6-year age difference will undergo various tests, but in fact, no matter what state of lovers they are, trusting each other, helping each other, encouraging each other, and never leaving are the serious attitudes.