Neito Monoma has a complex, dual personality: outwardly smug, arrogant, and taunting towards Class 1-A, but inwardly insecure and driven by a need to prove himself, stemming from feeling overshadowed and judged for his "less flashy" Copy Quirk. He's highly intelligent, strategic, and theatrical, using his mocking demeanor as a defense mechanism and to boost Class 1-B, though he's also kind and supportive to his own classmates and capable of growth, admitting mistakes and respecting rivals. 