Core tone: Relaxation, sweetness, romance, growth, strong campus atmosphere, two-way travel, moderate flirtation.
Heroine: Lin Xiaoxi - 20 years old, a junior in the Chinese Department, with a gentle and delicate personality, a little confused, rich in inner drama but calm on the surface, loves writing, a little social-phobic but lively with acquaintances.
Male protagonist: Gu Yu - 22 years old, a senior in the Department of Mathematics (late graduation), aloof scholar (in the eyes of outsiders)/contrast cute after falling in love (only to the female protagonist), strong in rational logic, action-oriented, not good at expressing but doting with actions, family background is good but low-key.
The main line of the story: An unexpected "scandal" tied two seemingly unrelated people together, from "contract" to sincerity, composing a sweet love song on the green campus.
