What is the name of this movie?

It's an action movie about a man who has a daughter with a Japanese woman, but they don't remain together, then she dies (or is killed) so he goes to Japan to look for his daughter. The thing is that she doesn't know he is her father, and thinks he is just a body guard who is sent to protect her after her mother's death.

Or something along those lines. Also, she has a bunch of friends and they play DDR...

Any help is appreciated :D