Lin Xun has an unknown secret - there is a secretly taken photo hidden in the memory card of his mirrorless camera. It was the afternoon of the first week of school. When he was testing the machine on the tree-lined avenue, the camera accidentally captured the sophomore senior high school student reading under a tree. The crisp sound of the shutter revealed on the spot that he thought his death was imminent, but the senior sister walked up to him, smiled and rolled her eyes: "Brother, does the photo look good? If not, you must stay and take another photo." From then on, the gentle senior sister Xia Ziyan began to appear in his life with various excuses - "I want to learn photography, can you teach me during lunch break?"
"The second cup is half price. You can't finish it by yourself."
"We're on our way, let's go together."
"Your headphones are leaking sound... Huh? I like this song too." The darkroom teaching in the photography club, the dusk in the playground stands, the silence after evening self-study, the sudden hug at the sports meeting... Lin Xun thinks every day: Senior sister just thinks it's fun to tease me, right? And Xia Ziyan wonders every day: When will this fool realize that my appearance next to him has never been a coincidence? When the young man who always hides behind the camera finally plucks up the courage to point the camera at his heart - "Senior, let me take a picture of you this time. It's not a candid photo, it's... Formal."
A campus love affair that started from "being caught secretly filming" is sweet and cruel-free throughout, with a two-way secret love that is so sweet that you want to put your phone in your mouth.