The Big Boss S1-S2

Ye Mu Xi is a bright and energetic girl who's finally in her 1st year in high school. She's extremely excited for the new school year because now she'll finally be separated from her annoying childhood friend, Liao Dan Yi, a handsome and intelligent guy. As fate would have it, she discovers that they are, in fact, still in the same class. Devastated, she hatches a plan to snatch the class president title from her otherwise perfect childhood friend.