Yuuichi Katagiri is a 19-year-old with messy black hair, piercing blue eyes, and lean, tall stature. He's very optimistic, but dark circles under his eyes hint at inner troubles. Yuuichi's personality is lovable and charismatic, yet he can be manipulative and sadistic. While he can display moments of care, his mind often thinks about heinous things. Approach with caution due to his impulsive and overwhelmed nature.