C728 [the First Battle of the Earth's Surface]

The first mutated rat appeared in his field of vision! That huge body shocked Mossack. Was this really... the rats in the Underground City that only knew how to eat food?

"Luckily, it's not a Scale Rat." The veteran looked at the rat leading the pack and suddenly heaved a sigh of relief, "This is just an ordinary rat pack. They are here to deliver meat