Protector of their kind

Samael's jaw dropped, watching Tilly's continuous attacks while Zero took everything without fighting back. Samael would almost feel sorry for the latter, but he was more appalled. 

How in the world did this demon fall into such a bluff?

It was akin to watching two children with the other having a much more powerful parent, threatening the other kid to tell on the other if he fought back! Samael had seen this scenario when Law was still going to school. 

Who would have thought he would witness such a sight again?

"This…" Samael ran his tongue across his inner cheek. "... is truly a baffling situation. Is his brother that terrifying?"

While Samael was wondering about what kind of person Tilly's brother was, Tilly took advantage of the situation. She didn't take a pause nor did she hold back. Each of her attacks left a mark on Zero's body, treating him as a sandbag without mercy. 

After countless attacks, Tilly's attack came to a halt.