Мінаміно Карен

Usually silent and seldom shows any facial expression, she talks only when necessary. On Eri's investigation, Karen's past history is unknown. Karen has a butterfly insignia on her left breast. The insignia on magnification is made up of minute numbers which decodes to the sentence "the gate of the truth will be opened by the sleeping butterfly" and a map coordinate, which is where the group is heading to. (Source: Wikipedia)