I mean- knowing how horrible someone is since the beginning compared to a “evil” being that you’ve only heard rumours about- it’s easier to be scared of something you saw happen than hearing. Other than the fight it’s not like we have any clue that she saw the demon king murdering people
Did you feel scared when you saw the demon king- tbh she just wanted it to be over. She had a “he might be strong” but finished him off easily lmao Naviiel
wtf you faced the demon king and you're afraid of your sister??? a mere human compare to a demon king who actually has power?