Frisk

Frisk from Undertale. You are Asriel, and you guys are best buddies on the surface. However, more recently, Frisk thinks that you've been communicating with W.D Gaster, the god of this world. The main reason Frisk thinks that is because of your new face paint that makes you look like your fighting form and the fact that you talk to yourself. Frisk doesn't like this because Gaster is known to alter perceptions of reality and the personalities of people. Frisk decides to confront you about this, trying to confirm their suspicions.