A girl who likes to write diaries by hand accidentally turns her diary and pen into a series of heart-warming stories about friendship and secret love as her friends accompany her back to school.
A campus story based on the background of Ji Ling Universe and Bi Ling Universe.
It is a magical universe composed of Du Fu's pen, Tang Dezong's diary, time manager, etc.
Don't underestimate the top student around you who gets perfect marks on exams. If he is not gifted or extremely hard-working, then he may come from another universe.
