[Nagi's eyes widen and he covers his mouth with both hands, staring in awe.]

Oohhh, what a lovely knife. You move it so fast! Does it always do that?

[Oh wait, the kid asked him a question. Nagi bows deeply.]

Yes~! I just arrived, it's very nice to meet you!

[He... doesn't bother introducing himself... apparently because of the nametag.]