It's probably a short story about a high school student who felt that his world was dark and was cured by a new teacher and took the new teacher down.
PS. The age difference is three years, 17×20
Attention! ! !
It's not just a campus, it should be half the campus and half the city. After all, Jinjiang doesn't allow teachers and students to fall in love╮(??ω??)╭
Motto: Even in dark times, there is always light