The Third Book by Yaonv He Zai

Wang Erbao, a farm boy, comes upon a fortuitous opportunity. Seeking immortality, he carefully makes his way into the ranks of cultivators. Though simple-minded, he has a plan of his own. With the help of a magical bean, he trains the livestock, insects, and birds around him into master craftsmen. A bull can forge magical artifacts just by setting hoof to the forge, while silkworms can exhale mist that ripens spirit herbs in the fields. Though he struggles in the cultivation world and has no powerful backing, his unyielding will, aided by his strange talent for taming beasts, ultimately leads him onto a path to heaven.

No saintly heroine, no mindless plot, no pointless rambling. If this sounds like your kind of story, add it to your library now.