Zhunpeijiao Shouze

An Zhiyou's rules for surviving high school: 1. Be the supportive background character for her friend. 2. Live a quiet, unremarkable life. 3. Leave the romance stuff for the popular kids, not her. But the sudden appearance of Che Xiancheng and Zheng Hengyou have ruined her plans. "Wait… the rules don't say anything about what to do when the background character falls in love!?" (Source: Webtoon, translated)