Komaru began as a somewhat hypersensitive and quite cowardly character. She wavers between hope and despair as a result of her forced imprisonment. She doesn't want to have strong hope, because she believes it will be lost eventually, leading to worse despair. She has low self-esteem, considering herself boring, ordinary and weak. Toko is intellectually gifted, yet she has problems in social behavior. It's been stated that she either never learned or never bothered to learn social skills.