Kodomo no kodomo 2008

Haruna is a lively tomboy in the 5th year at elementary school. One day, while playing with Hiroyuki, a boy whom she has known for a long time, they play a game of putting their private parts together. A sex education lesson given by a new teacher, Yagi, makes Haruna suspect that she might be pregnant.

Cast:

Haruna Amari
Haruna Mochida 

Kumiko Aso
Teacher Yagi 

Yoshiko Miyazaki
Haruna's mother 

Mitsuki Tanimura
Haruna's older sister 

Reiko Kusamura
Haruna's grandmother 

Satoru Saito
Haruna's father