Kill the Monster and Become Stronger

The world is in chaos with ferocious beasts and demons running rampant. This is a fantasy world where the human race is precarious, and is surrounded by crises. Su Yuan traveled through time and became an ordinary person with no talent for cultivation. Fortunately, he has a black coffin. The demons and ferocious beasts that everyone fears become Su Yuan's nourishment. Kill them and you will become stronger! … "What? This technique is so profound that it can't be practiced even by an unparalleled genius?" "What? The conditions for practicing this technique are harsh? You can't even get started without the five basic qualities?" "What? You said that the several medicines needed for this technique have disappeared?" Su Yuan said that as long as the technique is strong enough, this is not a problem! "Please give me more of this kind of technique!" … Breakthrough skills and kill powerful enemies! See how Su Yuan is invincible in troubled times!