Please, Is the School Beauty's Brother My Brother?

(Single heroine + love + unique style + everything + brother-in-law, no system, no rebirth) Who hasn't been a bitch yet? Haven't you been a bitch for three years? At worst, I will just come to C... Gu Chen vowed not to make the same mistakes in the past four years of college. Who would have expected that such a trick would be revealed on the first day of school? How can one person be so "lucky"? It wasn't until he was gradually targeted by the campus beauty of Jida that Gu Chen realized that it didn't seem to be the case. Aren't they all said to be a cool school beauty? Why can't I see you when I look up all day long? She also invited me to eat noodles? Until one day, Gu Chen was shocked to find his brother who had always been honest and kind. "What did you say?" "She is your sister?" "Then should I still call you brother-in-law?" It's so far off the mark...