Tsubomi Tachibana

A fifth grader who deals with sensitive issues while growing up. She is happy about her mother's pregnancy. She is troubled about lot of things like that strange feeling that she has around Nemoto, the "indecent things" that they parents have done to make a baby, her feelings towards Saya when she gets close to Nemoto, She is just a girl dealing with growing up issues.

(Source: Wikipedia)