I Am a Crazy Girl-Protector, and I Signed in to Become the Supreme King at the Beginning

As a sister-protecting madman who also possesses supreme cultivation, when he finds out that his sister has been hurt by someone, he will naturally be furious and make the person who did it pay the price. But the murderer hasn't been found yet, and my sister actually thinks that I'm not his brother! What should I do about this...? "My girls are the most important, so I won't hesitate to be the enemy of the whole world!" This is my oath as a sister-protecting fanatic. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.