[It may be true that there's very little either of them can do if the powers that be decide to mess with them. Hell, they took Tsurugi away from her just to give him back. Both of them were powerless but that didn't mean sentiments didn't matter - they did, especially from Tsurugi when he was being genuine.
He may not be able to protect her but he wants to. That means more to her than he realizes.]
...Then I'll give it to you. I trust you.
[It's a big ask, what he's requesting of her, and as he's bearing his heart to her she's in turn doing the same.]
It's the one thing people wanted me for, you know? My blood. It's the reason I'm still alive and why I was treated the way I was.
of course he does
He may not be able to protect her but he wants to. That means more to her than he realizes.]
...Then I'll give it to you. I trust you.
[It's a big ask, what he's requesting of her, and as he's bearing his heart to her she's in turn doing the same.]
It's the one thing people wanted me for, you know? My blood. It's the reason I'm still alive and why I was treated the way I was.