
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.
Kodomo no Kodomo is a Japanese movie of 15,310 characters, with 1,527 unique words and 645 different kanji. Its difficulty rating on Jiten is easy, 1.9 out of 5. The full vocabulary list ranks all 1,527 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.