Su Wanxing, from Class 3, Grade 2, is an ordinary girl who is used to hiding herself behind textbooks. Her grades are average and she has a quiet personality. Her biggest hobby is secretly drawing starry sky illustrations in the corner of her desk, hiding all her thoughts that she dares not express into the stars. Until the arrival of transfer student Lu Xingci, like a beam of starlight that unexpectedly broke into a dark corner, disrupting her regular life. Lu Xingci, with the unique freshness and dazzle of a young man, not only ranked first in his grade, but also unexpectedly discovered the brilliance of Su Wanxing's paintings. During their sophomore year of high school, which was full of cicada chirping and exercises, the two of them met by chance between desks, worked on questions together under the lights of evening self-study, talked in the evening breeze on the playground, and slowly grew up with each other's encouragement. Su Wanxing gradually stepped out of the shell of inferiority and bravely showed off his talents; under the influence of Su Wanxing, Lu Xingci also removed the shackles of "perfection" given by others. The small space between the desks witnesses the mutual redemption and companionship of the two teenagers. They are like two stars side by side, illuminating each other in the journey of youth and heading for a brighter future together. This is a story about youth, growth, courage and companionship, which hides the most sincere throbbing and perseverance of every ordinary person's youth.