Hyun, a high school student, writes down his feelings for his friend Dong Ho in his diary. Then, Dong Ho sees the diary, and the two talk to confirm their feelings for each other. Can the ending for these two be a happy one?
The bookstore owner, Hyun, coincidentally discovers the diary he used during high school. As he flips through its pages, he reminisces about the past when he had a one-sided crush on his close friend Dongho.
