Sati Shai's Links
Sati is essentially Emery's other half, in spirit; that's how he sees it anyway. He's one of the few vampires who doesn't revile his hedonistic lifestyle, and because of that, Emery eagerly pushes the envelope and further influences Sati's bad behavior whenever possible.
Lars has a healthy fear and awe of Sati, and is keenly aware of how powerful he is. He isn't sure how he got to this point, but he finds himself engaged in a sexual relationship with the older vampire; Sati gives him personal lessons in both pleasure and patience that -really- make an impression on him.
Hisashi was raised to be cautious and avoidant of major vampire culture. Sati is an old vampire and Hisashi cannot completely fathom his motivations. Even though he's in a phase where he's been dipping into the culture curiously Hisashi remembers Yuenu's warnings and has a healthy wariness and respect of Sati especially because Sati is much older and more powerful and could make his life completely miserable or kill him easily.