18-Year-old Su Nian, a freshman in the Chinese Department who always likes to write novels in the corner of the library, deliberately chose the most remote old library in the school in order to avoid the readers urging him to update. Unexpectedly, her "secret base" was occupied by an uninvited guest - Lu Yanzhou, the legendary cool and unapproachable school boss and sophomore law school senior.
Two people with very different personalities unexpectedly started an anonymous pen pal-style communication because of a small note tucked into a book. Su Nian didn't know that the gentle and wise "L" on the note was the senior Bingshan who she always met in the library and made her heart beat faster. Lu Yanzhou also didn't know that the quirky "N" on the note was the elementary school girl who was always "scared" by him and blushed.
When the identities on the Internet gradually overlap with those in reality, a sweet and green love sparks between the two.