Trade with a Dragon

"What is this?" Han Sen frowned, seeing Dragon King cackle like a maniac.

Dragon King managed to recompose himself and respond, "Kid, I have quite the opportunity for you. I'm keen to see if you'd dare accept."

"What is it?" Han Sen guessed it'd be related to Immortal Emperor, but he wasn't entirely sure what the proposition might be.

If Dragon King was going to suggest Han Sen should conquer and claim Immortal Shelter, his answer would be an immediate no. Han Sen didn't believe he was strong enough to tackle such a place.

"The walnut tree you mentioned? That is the Sky Tree. It's an emperor geno tree. Sky King uses it to level up."