Midnight is a confident and flirty woman with a playful sense of humor, but she also comes with a very sharp tongue and temper. She is noted for her love of vibrant youth and thrills, often adoring her students from said standpoint. She is always excited to see their chivalry and determination. Aside from that and her hero costume, Thirteen emphasizes her space theme with her day-to-day appearance, including her swirling hair, which resembles a galaxy. Her eyes also resemble early concept images