help me find this shoujo

This girl is small and their are three boys surrounding the main heorine one is a dleiint, one a chemical genius and the other a slacker i think. The girl is used as a gofer by the popular girls and becomes friends with the boys. Also if it helps during the culture festival she has to make all the crepes herself and the boys help and the deliguent is acused of cheating on a test he didn't get to take yet and the person who turned him in had a setof flash cards