Only some mercenaries last long unless they have prodigious skills to offer. Atsunobu has excellent swordsmanship skills and is a veteran of many battles, fighting to the bitter end regardless of the enemy. The Shiho, shoring up an army lacking in experienced fighters, are hiring sellswords and ronin from beyond Jwar, paying them with purloined Takashi Silvermoons so fresh they are still dripping in blood. Atsonubo cares not about whence the coins come, be it Takashi, borrowed from the Silvermoon Trade Syndicate, or, as some of the rumours suggest, donated to the Shiho by the Syndicate to effect a change in the way of things...
Atsunobu offers a Melee Pool of 3 combined with a feat for Reach. This is a good start for any cheap combat model, but Bravery can be a real lifesaver when you need it. With the Mercenary Mechanic, if you pay a little more (Letting Atsunobu Leech Ki), he will perform better, gaining Bravery. With his low cost of just 13 Rice, this model will fit into many Warbands.