Faust

Faust is a soft-spoken sinner with a sharp tongue. She claims to be highly intelligent and appears to have the accomplishments to back up this self-proclamation- such as having developed Mephistopheles- but nonetheless comes off a bit arrogant because of this. She expresses unwavering faith in her abilities and does not show any signs of panic even in troublesome situations. As one of the more quiet Sinners, Faust appears to simply prefer standing back and watching events unfold or lacks information to divulge in the moment.

It's clear that Faust knows considerably more than she lets on, which is something that everyone around her seems to have already picked up on, including Dante. In Chapter 3, Sinclair leads the other Sinners through a passage under his old house, towards the Golden Bough. When he dully accuses Faust of bringing along the Sinners as sensors for the Boughs, she neglects to respond and instead continues walking. She tells Dante she is "simply not in the position to comment on it". Faust expresses a similar attitude regarding anything concerning their life before the clock head.

Under her usual calm, serious attitude, Faust appears to be a bit aloof. In her dialogue for her base LCB Sinner card, she expresses that she always gets up after three hours of sleep (and used to believe that everyone does this), and does not concern herself much with hobbies.