Three Leaves, Three Colors.

Futaba Odagiri is incredibly energetic but is also a glutton. Teru Hayama looks like an angel but she is really a demonic class president. Yoko Nishikawa is the daughter of family that used to be a member of the upper class, but after her father's company went bankrupt, they became poor. All three high school girls have the kanji for "leaf" in their name but could not be any different from one another.