These two guys are two chara of "Arslan" a manga I only have a little idea of what it deals with. The one in black is Daryun and the one in blue is Narcasse (or Narsus...). They are both warriors (and Narcasse is even a strategist... He's a clever guy!!) who help prince Arslan who has lots of problems (don't ask me which ones, I don't know!!!!). Daryun is a very strong swordman (the strongest I think) and Narcasse is also an artist (he paints...). They are sometimes considered as a couple because even if there is nothing explicit in the manga, some looks and some words can have a special interpretation!!! And I think they could be soooooo cute together!!!!