@ceereus Well there are more manhwa out there that they “time traveled” and thought they were naive, like the fl from shadow queen or leslie from the monster duchess and the contract princess. And the reason she was loyal enough to fully trust and kill for the emperor was because he showed her sincere and acted as a guardian when her father passed away. Maybe she wanted to repay him but he wasn’t really lacking anything, wealth or power, and that killing for him was the only way. I guess she clung on to that and didn’t suspect him.
@crexmi Sure, but that's not really a reason to go against what you believe in. I mean, it's pretty obvious she'd been groomed from a young age and her position is vulnerable but still. Usually you don't have the assassin clearly expressing how much they thought what they did was wrong. There's no answer in the text so far, just thinking out loud.