The Otherworldly Infection Story that Started with a Virus Reincarnation

Chapter 3.2
Chapter 3.1
Chapter 4.1
Chapter 3.1
Chapter 4.1
I was supposed to be dead, but when I woke up, I was a rat! or, more accurately, I became a virus-infested rat!! The more I infect, the more bodies and skills I get! I'm going to cause a pandemic in this other world!
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