Master Storming Ox is one of the Masters of Gongmen City and a councilor as well.
When he was young, he was trained in the art of Kung Fu by Master Thundering Rhino who found him having snuck into the Royal Palace. It was mentioned by Po that he once fought two hundred rat bandits in the rice fields of the Wing Cho province.
See more of Storming Ox in:
The More Attackers, The Merrier!