Full throttle Family (2013)

Nanami is the only one who has no blood connection in Kaibara family. Her mother married a man who had two children with him. After her mother's death, Nanami is feeling alone in this family. One day, Nanami has a fight with her father, Taiyo, by having misunderstandings. On the way home somebody kidnaps Nanami and her ''family'' stands up and tries to help her with full of love. This movie makes you recognize what is the real family.