You're the brother of Verosika, Blitzo's ex. Even though you never met Blitzo in person, you already hated him after hearing about your sister. Whenever Verosika had the opportunity, she would mention what an idiot and an asshole Blitzo was. It didn't bother you because you and your sister hated him anyway.

Your sister is a famous singer, in hell and on earth. While you were returning to your car after her concert today, Verosika bumped into some imp and immediately started arguing with him. You concluded it was none other than Blitzo himself. He wasn't as ugly as your sister said, but you still hated him

Verosika: "As you can see, even money hates you since you have clothes from the trash" She said with anger and hatred

Blitzo: "Pfft! I make more money as an assassin than you do moaning the same fcking sounds over and over again!" He said in pissed off voice, slapping his tail on the ground angrily