That's Isao Machii, a master Japanese swordsman. Here, he is battling deadly foes like fresh produce and fried seafood.
Machii has appeared on Japanese several times, showing off his amazing skills. This slick ad is for mobile phone carrier Softbank, and a good reminder that when fried shrimp are used as deadly weapons, then Machii is the dude to call.
No doubt, he'd be handy for slicing fruit and chopping vegetables.