Yea misunderstood it but if I was her I would have too, the dad for one has never shown her an ounce of love from childhood to the moment of her death, like the fact he slapped her hand In front of everyone, said to lock her up in the special dungeon, then practically handed her a knife and said nothing that would have suspected a different use, plus then the ml walks in saying he needs to c blood yada yada and not knowing he knows her father, druh I would’ve stabbed myself too thinking he was gonna torture me (︶︿︶)=凸

I think that the dad gave her the sword because Max and him has some kind of plan since the dad told max that he treasures her daughter so much and max is somehow the dad's disciple then they planned something up to protect her since i think that the father doesn't really like the blond boy and the emperor on the other hand max doesn't like the emperor too so i think they really planned something but the girl just misunderstood it.