Sealing Heaven Sword

I was originally a carefree long-term worker in a drug store. By chance, I heard that my "parents" were not my biological parents. However, they treated me like my biological parents, and I was happy to be able to continue growing herbal medicines. But fate kept challenging his bottom line. The medicine field was destroyed, and he found that escaping was of no use. He ate a powerful grass to repel the enemy, only to realize that he had to be stronger to protect the things he loved, so how could he be stronger. . .