One longsword/broadsword on the back, one sheath that looks like a tanto across the back on the belt line, six daggers on his arms and chest, three katana, two short swords, one visible dagger and probably another one for symmetry belted to the legs.
Grand total comes out to 14-15 swords. It's like the art department called in Tetsuya Nomura and then replaced all the zippers with stabby things. All he's missing is a hat with a zweihander sticking out of it.