Mizuiro Jidai
The story follows Yuko Kawai, a junior highschool student, as she faces the challenges of growing up and overcoming her shyness as she comes of age. She begins seeing her best friend Hiroshi Naganuma, the boy next door, in a different light.(Source: Wikipedia)
Kodomo no Omocha
Azuki-chan
Futsuu no Onnanoko
Shougakusei no Himitsu
Pure♥Pure