Mika Ito

Riiko considers Mika her best friend since middle school until it is revealed that she only befriended Riiko because she seemed pathetic and it made Mika look better. Beautiful and proud, Mika pretends to support Riiko's efforts to find a boyfriend, but actually spread vicious rumors about her to boys Riiko liked. Mika is only interested in other girls' boyfriends, even though she knows there are many other boys who are interested in her. She never seems to be happy and she tries to make herself feel better by causing trouble for others. She is actually the first one to notice Soshi's love for Riiko. Source: Wikipedia