Ore No Wakuchin Dake Ga Zombie Shita Sekai Wo Sukueru Chapter 5 Extra Quality -

The survivor, a grizzled old man, eyed me warily. "We've heard of your vaccine. It works, but it's not a cure-all. What about the people who are already infected?"

"Hey, you're the vaccine guy, right?" one of them asked. The survivor, a grizzled old man, eyed me warily

I frowned. "What do you mean?"