A cold academic but he is willing to be gentle to her little sunshine. The story begins with the hero and heroine meeting in elementary school and graduating from junior high school. The hero was too shy to ask the heroine which high school she wanted to go to, but the heroine's friend told him that he would definitely go to the same high school as her. They went to the same high school and got together when they were about to graduate from high school.
Concept: The male protagonist meets his little sun by chance