My Sister Was Murdered, So I Unleashed Monsters Upon the World!

Three years ago, a virus broke out and beasts began to mutate.

To protect the world, Xia Yi and his older sister followed their team into a restricted zone to fight the mutated monsters.

After enormous sacrifices, they finally wiped out every monster in the zone and completed their mission with honor.

But just as Xia Yi led the surviving team home in triumph, they were met by tanks with their cannons aimed straight at them!

They should have been heroes, but instead they were betrayed!

Amid the thunder of the bombardment, Xia Yi lost the sister who had been his only family for years!

The rest of the team was wiped out as well!

Only Xia Yi survived!

“Argh!!!” Xia Yi threw back his head and roared!

Why would Heaven treat him like this?

With no other choice, he carried his sister’s body back into the restricted zone.

That was when Xia Yi discovered the source of the virus.

By leveling up, he could strengthen monsters.

So he decided to let monsters overrun the entire world!

He would make those people regret the choice they had made!