
Emi Mizuchi 詠巳 海槌
The youngest sister who is an artist. Emi is an egomaniac who sees herself as a great artist when at best her talent is borderline, which leads her to use her father's influence to bribe judges and copy the works of other artists. Emi steals Junko's work and copies from it to win an art contest. (Source: Wikipedia)
Spoiler
In the OVA she is killed by a brainwashed assassin along with her father sent by Remi. Same Voice Actors