1. First, put a piece of meat on your body and go to the last room on the 2F of the hotel next to the east gate of Prontela. There is a pair of mother and son NPCs inside. Talk to the housewife Maria first, select "Dialogue" to listen to her words.

2. Next, talk to the child Mo Lisun next to her, select "Show him meat" and then "Don't give him meat", and then listen to what he has to say. If there is no meat on the body, there will be no "Show him meat" option. Talk to the housewife Maria again and listen to her words.

3. Finally, spend money in Feiyang to ask NPC to help you make fruit juice.