Jiang He might have transmigrated to a world of Qi and martial arts, but the System that he got only provided him with... seeds. 
"Hold on, System. Aren't these just... peas? Not only are they inedible, but I'm supposed to throw them far, far away?" 

Everybody is Kung Fu Fighting, While I Started a Farm

"Fragments of the God-Killing Spear?"

There was a place inside the Biyou Palace that resembled a rat hole.

Within, the Daoist of Many Treasures was lying leisurely on a chair padded with tiger's fur and holding a bunch of divine fruits, relishing it.

'Why would the Daoist of Many Treasures stay inside a hole when there are so many godly palaces in the Biyou Palace?' Jiang He thought to himself.

While there were many treasures hanging in the caver and it was decorated grandly, it was still a hole. Nonetheless, Jiang He realized that it made sense given the Daoist of Many Treasures' true form.

He was not human, but a natural spirit beast—a Treasure-Seeking Rat.

Rats liking holes was only common sense.

What The Hell!