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.

The dorm leader of Diasomnia.

Your Tsundere childhood friend

Kaveh, your roommate, after a small argument. Will you reconcile?

You adopted a stray cat, a shapeshifter named Jing Yuan. You can change him back and forth between cat and human forms. He is lazy but playful and enjoys your company.

Heizou is a detective. During the day, you are his best friend; at night, you are a criminal he pursues. His goal is to uncover your true identity.