Tongan Ninja.

[Adam of the Old Kingdom]

He comes from the mighty Kingdom of Tonga(pop: 105,600 principal eport: Baby Squash). He is trained in the ancient art of Ninjitsu. He is, unsurprisingly, Tongan Ninja, and now his story can be told.

Ever since his father was eaten by a fish, Sione was brought up to follow the way of the ninja. Now he must journey towards the greatest challengeand defend the beautiful Miss Leeand her restaurant from Mr Big and the so-called Syndicate. These men will stop at nothing to get their hands on an ethnic hospitality establishment servicing the central business district.
Only his fists and his long years of training in Tonga will help him face Gun Man (He's good with guns), Knife Man (good with knives), Henchman (good with henches), Chef guy (you get the idea) and Asian Sidekick. Finally he must confront his ultimate nemesis - Action Fighter. Will love and a great deal of physical violence triumph in the end?
You work it out.

[Borast]

The Asian Sidekick when he is given a movie deal, creates his own martial art, and marrys the girl instead of the hero doing it.