I was supposed to be dead, but when I woke up, I was a rat!...or, more accurately, I became a virus and infested a rat!! The more I infect, the more bodies and skills I get! I’m going to cause a pand...more

I was supposed to be dead, but when I woke up, I was a rat!...or, more accurately, I became a virus and infested a rat!! The more I infect, the more bodies and skills I get! I’m going to cause a pandemic in this other world!