Meogeulsurok Ganghaejim

Known as “Pet Shop,” Mr. Kim has the unique ability to absorb the skills of the creatures he eats. One day, Pet Shop is mysteriously transported to a magical world full of orcs, trolls, and monsters. A new world, new chow, and new skills. Now Pet Shop is determined to become the most powerful creature in the world. Follow his epic climb to the top of the food chain.
(Source: WEBTOONS)