Sano, a university student who works part-time at the library, has a “favorite”. It is Mine, a yankee-like high school student who frequents the picture book corner. Sano is content to watch Mine from afar.

One day, however, Mine speaks to Sano, and the two quickly become close. Gradually, Sano begins to develop romantic feelings for Mine.

Sano, who has made many mistakes in his past relationships, tries to put a lid on his feelings, but...