Sister, Are You Too Crazy?

What is it like to have a crazy sister? She is obviously a young and beautiful girl, but she is dressed in black leather, has a mature style and a hot personality. He called me a scumbag and punished me with a whip whenever I disagreed. Eat and drink, conquer demons and demons, move mountains and reclaim seas, everything is possible. 'Brother, if you have a sister to protect you from now on, whoever dares to bully you must tell me your sister's name! '