Kamen Rider From the Marvel Zombie Universe

On the wilderness, an elderly Hawkeye with graying hair tells the tragic past of the superheroes in this universe.

"Forty-five years ago, the villains joined forces and killed the Avengers, the X-Men, the Fantastic Four, and many other superheroes."

"They deliberately left me alive so I could watch the world they rule."

"I've been running away all this time, but I was diagnosed with cataracts recently, and I'm about to go blind. So before I lose my sight completely, I have to settle accounts with those people, at the very least kill the few main culprits from back then."

"That is my story. What about you, young man who calls himself Kamen Rider?"

Stirring the campfire with a branch, Yier replied:

"Oh~ it all starts with the Avengers from my world getting infected by the zombie virus..."