Hidden in Lin Xi’s diary is a secret about Zhou Yu, written down over five whole years, from high school through college. She thought hers was a private, chaotic crush, until the day she accidentally dropped the diary right in front of Zhou Yu. The whole school’s favorite well-behaved junior, a clingy little puppy, picked it up, cornered her against the wall with red-rimmed eyes, and said in a hurt yet stubborn voice, “Senior, you’ve secretly liked me for so long... don’t you think it’s time to make it official?”