Summer Wars: King Kazuma vs. Queen Ozu

Synopsis:

Kazuma isn't physically strong in real life, but in OZ, a virtual reality world that touches every corner of the globe, the boy is a fighting champion with his avatar, King Kazma. He's defeated countless foes online – often resulting in classroom bullying – and now has his eyes on winning the famed OZ Martial Arts Championship. With the help of friend Wataru's informational network, Kazuma might just be able to claim the ultimate prize: a rare King's Belt avatar item, and a cash reward. That is, if he can beat the mysterious and unbeatable 'Queen'...