[The approval of your elders is something she can understand. She can kind of overlook the 'I used my blood' part because of how familiar that is]

Having the approval of someone you admire is something to be proud about.

[...okay, she wasn't capable of overlooking it. Naoto stares at her cards]

...using your blood as a weapon? Why do I feel I may regret asking how exactly you did that?

[But she asked, either way]