Killing to Survive: But the Concept-level Ability at the Beginning

I traveled through time, but my identity was exposed, and I died, but I was not dead, so I was recruited to the killing world to fight monsters in exchange for life.

I thought it would be difficult, but who knew that I would get the concept-level ability at the beginning?

What else can I say? I just eat eat eat!

Eat monsters!

Eat teammates!

Eat flowers, eat grass, eat the world!