[Tomorrow is Mother's Day. May all mothers in the world be happy and safe!]

Silence.

A stifling silence filled the entire biochemical region. A long while later, the hoarse voice of the Dr. Cord resounded: "I've changed my mind, you are indeed a dangerous man. So, I've decided to kill you right now! "

As soon as he said that, a sonic boom could be heard from the top of Zero's head. A researcher jumped down from the ceiling of biochemical region. His ten ...