I Have a Mutant Stomach

Your stomach has mutated. You eat a pill. You understand the method of refining pills and master the refining skills. You ponder for a long time, your mind suddenly opens up, and then... you eat a secret manual. You learn the martial arts recorded in the secret manual and master the cultivation skills. You will refine all kinds of pills, cultivate all kinds of martial arts, your strength will skyrocket, and you will beat the enemy to pieces. Your enemy can't beat you, so they poison you. You are poisoned. Your stomach digests the poison, your power increases, and you become even more powerful.