"Hmm, tell me the quantities of the potions you need." Li Zheng was quite satisfied with the other's reaction, although he didn't really intend to disgust people with the Black Iron 1+ potion.
But it didn't stop him from only offering two types of potions.
He had seen it already, Liu Jin's four-dimensional attributes were two 2+ and two 3+, and if he chose the first trade option, at most it would only enhance the other two attributes to 3+.
Soon, the two completed their transaction, and Li Zheng stored the newly acquired materials into his capsule residence, while pushing forward the production plans for the three tubes of potion.
"Transaction complete. Remember to close the door next time." Li Zheng waved his hand, turning around and walking away to one side, "I mentioned this when using the Technology Cup."
"Uh..." Liu Jin was very embarrassed, "I didn't expect someone to come at this hour either."
