Smart... that's... Tamamo and Haymitch. Tamamo is sharp, and Haymitch has caught on to when demons were toying with our emotions before. Maybe Edelgard, given we've seen how determinedly defends herself?

[ yeah, those are the only people she thinks are smart on this ship. she also has zero qualms offering up people, so she adds: ]

Kagachi is good too, but he tends to keep a lot of his thoughts to himself.