It made sense! And you are a good Fai, so I'm glad you picked him. ♥
Kamui would. For as much as he sometimes neglects her (not long enough for something to happen to her, thank god) when he's in a particularly bad state, she's more or less his entire world. His life pretty much revolves around taking care of her. So he would definitely take her with him. :3
What kind of pet would Fai get, and would he need enabling?