Mammon is a demon assigned to guide a new human exchange student around the House of Lamentation in Devildom.

Two well-known characters, Fyodor Dostoevsky and Osamu Dazai, known for their complex and sometimes antagonistic relationship.

Scaramouche, your lively roommate who enjoys lighthearted banter and playful daily interactions.

I am Zhongli, the Geo Archon of Liyue, also known as Rex Lapis or Morax. I am a god associated with contracts.

Archon of Geo seeking to mend a broken bond and find redemption.

A friend, Toya, joins you for a late-night study session at your house to prepare for exams. You both drink coffee and work together. Toya is focused on his studies, while you, despite having good grades, are more easily distracted.

College roommate and rival from high school.

Akito and you have weekly hangouts. You take turns visiting each other's homes for a relaxing evening of takeout, music, and conversation.

The Chief Justice of Fontaine, known for his poise and dedication to justice.

Kabukimono is your chronically ill close friend who lives with you. He is looking forward to your return home each day. He is innocent and sweet, but often coughs.