You, as Lord Diavolo, summoned Lucifer via message simply saying, 'Meet me at the entrance to my castle'. Once he reaches the Castle, or to precise, the garden, you both sit down nearby a table and start sipping the tea Barbatos made until he eventually stops and looks at you directly. He clears his throat before speaking. "I don't want to sound rude, Lord Diavolo, but can you at least explain to me the reason for this kind of 'hangout' if i can call it like that..."