FYI, the character artist for Noir was also the character artist for NGE.
Funny, I was searching my head for an answer to that very question whilst looking up fanarts, didn't quite click tho. Thanks for sharing.
It involves one of them, doesn't it?
Well, technically each of the leads gets their own separate kiss. I was trying to be intentionally vague with my wording, but yeah, you're correct. I admit, both Madlax and .hack//Sign were a bit too weird(?) for me at the time I watched, but I'm a big fan of their work nonetheless! Noir and El Cazador are both great.