Lisa, in general, the drawing was also shown to them, and you can also see some signs (maybe runes) on the avatar, but "disciple of the devil" most likely refers to a ritual to summon a demon, or rather, to the one who performed it, calling him the disciple of the devil, because he summoned the demon x)
Lisa, in general, the drawing was also shown to them, and you can also see some signs (maybe runes) on the avatar, but "disciple of the devil" most likely refers to a ritual to summon a demon, or rather, to the one who performed it, calling him the disciple of the devil, because he summoned the demon x)