Despite his appearance, Koji is actually a quiet, gentle and reserved young man who rarely speaks, and sometimes uses sign-language instead of talking. Likely due to his Quirk, he has a very strong affinity for animals and nature, with him owning animal-themed decorations in his room and even having a pet rabbit. Only in love with one specific person and will carry out any task asked of them Through any means makes it so they're the only one their love will be around.