Nobody's gonna comment? Haha, then I'll fill it up 4 the sake of my boredom... Metsubo's a nice dude, with half Iro blood and human blood. Waru's pure Iro, that's why he's blonde. They are close buddies, Waru respect Metsubo in an undinstinct manner such as he'll let metsubo drag on talking about pick-ups and guns. Waru's an avid souvenirs collection and his most precious collections are either Garfield he collected around the country and maybe some tidbits. Both of them r trained assasin but Waru is more powerful, since he was installed with some mechanised thingy on his back to control him (and which can kill him if they're broken). Metsubo's on the soft side, always pampering his little student (in this case, Kimito) and enjo BBQ. Waru's other eye is blind when he tried to save his master but like osme cliche' story, he failed so he was left as the senior of the Gambit association and as a mentor especially to Ginmi. He's become softer when he taught Ginmi (cos he had painful memories when he was trained to become an assasin.) Waru obeys his boss, Kaigokakouchou very much as a bodyguard. A silent man, Waru rarely speaks, contradictory to Metsubo. Metsubo, on the hand, has quite a handful of happy childhood memories, considering he was half human, which means he's half accepted by the community. Metsubo is kept by Kaigo as an experiment to test out Metsubo id the Legendary Immortal Iro, which means that Iro can't die. SO like any other anime stories you've know, Metsubo is forced to go thru painful experiment, which include drowning him some tube thingy, meter thingy and bla bla bla. Kaigo suspected him Immortal Iro because he was a rare breed of both. Metsubo juz follow Kaigo because he's homeless since his parents died (under brutal human torture). Shortly speaking, they're close friends, bodyguards of Kaigo, and suffered prejudice in the community for their differences as Iro. They are assasins for Gambit, which is legal since no authorities dare to oppose to them. Iros are powerful creatures, able to control magic, and more things that humans can't do.