Death Note: Test Of The Knight (Batman / Death Note Fan Fiction)
JoshuaSVD777 for L / Ryuzaki
Highly Intelligent, skeptical, sarcastic, dry sense of humor, lack of empathy, socially awkward
“Kira needs a face and a name in order to commit murder. [Dryly, sarcastic.] But I’m sure you already figured that much out, haven’t you?”
"I suspect that you, Light Yagami, are in fact Kira. Now...if you still want to ask me something, then please go ahead."
[A tinge of boredom as he explains.] "If Kira knew we were here already, he’d likely have had the means to killing us by now. Though, I do believe he needs both a face and a name to accomplish that...so even if that were Kira on the other side of that door, we’d be safe. So long as he doesn’t know our full names, of course. "
That's really good actually. You even captured the proper inflections that L uses in the show. Well done!