The Lao Mang Long Soup made its first appearance when Chase brought it to battle claiming that he always drank a cup before victory. It was later revealed that Master Monk Guan traded Dojo with Chase for his Spear of Guan and that he had planed to turn dojo into Lao Mang Long Soup.
The origin Chase's contact with the soup would later be revealed when Hannibal offered the soup to Chase, who under the standard timeline drank it. Omi however traveled back in time and swapped the Lao Mang Long Soup for bean soup, hiding the soup inside a wall in order to stop Chase from turning to evil. When he returned to the future he found out that the soup was comsumed by Master Monk Guan and not Chase insted, thus creating a world where evil took over it. Later when Omi, Chase and the monks were trapped, Raimundo tried to drink the soup to escape but Chase decided to use it since it was supposed to be his destiny.
The recipe for the Lao Mang Lone Soup was given when Master Mon Guan told the story of Chase Young:
- One cup of wheat grass.
- One tablespoon of salt.
- A pinch of dry frog
- One whole dragon.
The main effect of the Lao Mang Long soup was that it kept the user forever young. Another effect was that it turned anyone into a feral monster, with a different appearance for each person, i.e when Chase drank it he transfored into a reptilian creature but when Master Monk Guan drank it, he transformed into a giant scorpion-like monster. In order to retain their human form, the user must drink the soup everyday, otherwise he/she would be in their true form, incapable of changing back to human. Another effect was a loss of one's soul exchanged for the youth, which resulted in the formation of evi thoughts and characteristics.
- The Lao Mang Lone Soup did not get dry or evaporate as the one that Omi hid in the temple was preserved perfectly.
- For whatever reason, Chase had an almost infinite endowment of Lao Mang Lone Soup cans in his palace.