Shiko Kotobuki

C-ko Kotobuki is A-ko's best friend and has depended on her since they met in kindergarten. C-ko can be considered quite childlike. She is described as "cute" and innocent, tends to be hyperactive, and, in the Japanese version, frequently refers to herself in the third person. C-ko can often be sensitive and immature, and because of this, she has a tendency to cry. Sometimes she can also be selfish and possessive, particularly in regards to A-ko, though whether this is because of unvoiced romantic interest in her f…