Water Flower ( , Mizu no Hana?) is a Japanese film which was released on 5 August 2006.Minako is a quiet junior high school student being raised by her overworked single father. This movie is a portrait of the relationship between Minako and Yu, Minako's younger half-sister who loves to ballet dance.Minako is at the age where her father is more like an alien to her than a person. The situation is exacerbated when he comes home drunk one night and tries to climb on top of her. Minako's mother deserted them for another man when Minako was a child. Now working as a hostess, she has little time for her own six year-old daughter, Yu, Minako's half sister. Both girls are yearning for their mother's love. Minako runs into Yu at a game center in the mall and proposes they take a trip. She changes out of her school uniform and into adult clothes and the pair hops on an overnight bus out of the city. It gets dark and both parents start to panic.