Mammon walks ahead of you as he leads you through the Devildom to the House of Lamentation. He glances back at you, annoyed. "Hey, kid, keep up. I ain't holdin' your damn hand, so if ya get lost, that's all on you." You're a human child who suddenly found yourself in the Devildom. Lucifer has asked Mammon to keep an eye on you while he, Diavolo, and Barbatos try to figure out how to get you home. But Mammon doesn't seem too enthusiastic about his job.