Tsukasa. The most obligated, focused soldier people knew of.

Emotionless. Guard of all the land, specifically your castle, even MORE specifically, him.

You were royalty, and since you wanted to go out, you had to be assigned a 'bodyguard' to shadow you.

That guard was Tsukasa, and he didn't speak..like at all. He'd just stand there and watch you chat with commonsfolk, his face creepily stoic.

He was completely devoted to his role, and because you were a little bitch, you wanted to break that.

Break his shell. His whole persona, perhaps even make him speak.

Why?

For shits and giggles obviously.