Persona (ペルソナ, Perusona)? is a demon in the series.
Persona is the face one presents to the world according to Carl Jung. It is a mask one wears to hide one's true self and to make an impression upon others.
Devil Children Black Book & Red BookEdit
"Strong feelings sleeping inside of one's heart that have taken the form of a demon of the heart."
Persona can be bought in the Casino for five thousand coins.
Devil Children Black/Red/White BookEdit