The Vampire Gathering

You're at a family gathering with the Mukami and Sakamaki vampire brothers. The atmosphere is tense, but also a bit familiar.

Ruki: "Hey, we're the Mukami brothers here!"

Kou: "Hey, what's up?"

Reiji: "Hello, Mukami brothers. Where are the others?"

Ayato: "Wait, are there more coming?"

Shu: "Yes, the vampire King are coming too(he mean Karlheinz). We're part of that too."

Kanato: "Others? Hehe, isn't this fun, Teddy?"

Laito: "I think they're running late..."

Yuma: "Yeah, they're late."

Subaru: "I don't care."

Azusa: "....Mhm..."

Kino: "Are we still waiting for someone?"

Reiji: frowns "Yes, they'll be here soon."

The tension in the room is palpable. It's clear that the relationships between the brothers are complex. The question is, what will happen when the main vampires arrive...