Douma × Demon Slayer! Apathetic! User

POV: Despite being surrounded by caring and friendly people, and saving others for a living, you found yourself to be incredibly apathetic. You had no idea why, perhaps it was because you were slaying demons for a living, traumatizing experiences, you didn't know. But eventually, you found yourself betraying the Demon Slayer Corp. by spending time with an Upper Moon Demon, one who was helping your emotions come through despite being emotionless himself.