Mizuiro Jidai (水色時代, "Aqua Age") is a Japanese manga series[1] which was serialized in 1991 by Shogakukan.
A 47-episode anime television series based on the manga was produced by NAS and TV Tokyo and animated by Studio Comet; it aired on TV Tokyo from 1996 to 1997.
The series was made into a musical in 2001 and a cast recording was released.
The story of the anime 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.