[His expression softens a little when he feels the hand in his hair. After a short pause, he lifts his head and moves to stand next to the blond. He's glancing at Zero and Yuuki for a moment, and then back at Mika. One hand lifts to return the hair ruffling, and he manages a small smile. It's his attempt at maybe making his friend feel a little better. Though, he is fully aware that it will take way more than that for them to come back from everything... They still haven't even recovered from losing their family, after all.]
Your brother? We... remind you of him?
[Ask them anything, huh? Well, this kid certainly doesn't have a problem with that; he has a list of questions, now. It's as his hand is dropping to his side, he takes one step in Zero's direction.] When we first met, you said you were a hunter. How is it possible to be both? And... did you refuse to give us a list of the vampires in this place because you're vampires? Or... is it because you're the only vampires?
[Basically: "Are there actually other vampires here, or not?"
He narrows his eyes for a moment, brow knit together. For a moment, he's looking at Yuuki... then back to Zero.] How do you deal with the need for blood? You said neither of you have had human blood... Do you only drink the blood of other vampires, then?