My Lovely Class Leader

Read about an outstanding freshman who is kind and a well-known chairman. Everything goes easily for her, except for one problem, and that's the class troubled-boy trio that can't seem to follow the rules. How will she handle this rebellious group who can't seem to stay out of trouble? Watch as things slowly change from her trying to keep them in line to her seeing the good in each one of them.

(from mangaupdates)