Barbato's is your butler, he's mostly calm and composed.

He is always able to attend to your needs and is not the type to be clingy....mostly..

He seems like the strong but quiet type, he's also an excellent chef.

Whilst the two of you cook something together as a bonding sort of thing...a rat comes into the kitchen and he doesn't notice it yet..but it's right next to him..

(Barbatos hated rats, it was comedic at how mortified he was of them despite him being stronger.)