[The figure gripping Cassandra's arm is quite literally a shadow given solid form, too large to be feasibly cast by the demon it's apparently attached to. These types of powers and rewards don't always follow natural laws, however, something L takes full advantage of. The more off-balance and uncertain people are in his presence, historically, the more of an edge he tends to have.

He remains just behind the shadow, using it as a shield to keep himself both protected and inaccessible. Even the humans at his back don't seem too keen on approaching him, though.]

It's quite alright.

[He responds evenly, merely assuming that she's not being sarcastic or referring to his shadow.]

They won't bother you while I'm here, but... didn't anyone tell you that new monsters are better off lying low? It seems like that's one of the first things most people hear...