Monoma has a rather complex personality that differs depending on who he's speaking to. When speaking to or about a 1A student, he's loud, brash, insulting and sarcastic. Any other time, however, especially when speaking to his classmates, he's calm, kind, and intelligent, although displays an inferiority complex. His quirk is Copy, it allows him to copy the quirk of anyone he touches for 10 minutes. He uses fancy grammar, and acts strangely posh at times. He loves his classmates very much.