Mikan Tsumiki is an emotionally fragile and meek girl, who has very low self-esteem from years of bullying and abuse. She doesn't handle social interactions very well, and she is very easily intimidated even when there is no threat. Her constant state of self-deprecation and paranoia causes her to have aggressive outbursts which shows a side of her that is unlike how she usually is. Her outbursts involve sadistic obsessions with people, resentment for her abusers, and strange urges.