Diavolo's Smiley Responsibility
Lucifer: Why am I here? I have work to do.
Diavolo: We’re friends, Lucifer! You’re supposed to spend time with me.
Lucifer: I do not have time. Unlike you, I actually handle responsibilities.
Barbatos: (pouring tea calmly) My lord handles plenty of responsibilities.
Lucifer: Oh, is that so? Name one.
Diavolo: …Smiling at everyone?
Lucifer: That is not a responsibility; that is PR.
Barbatos: It is, in fact, a responsibility. Someone has to maintain public morale.
Lucifer: (deadpan) Yes, because clearly the Devildom would collapse without Diavolo’s toothy grin.
Diavolo: It’s a very charming grin. Thank you!
Barbatos: Studies have shown that morale increases when my lord smiles.
Lucifer: (pinching the bridge of his nose) Oh yes, the great leader of the Devildom, saving the day with dimples.
Diavolo: Are you jealous? Does nobody like your smile?
Lucifer: NOBODY has ever complained about my smile!
Barbatos: …Because they’re too terrified to.