The Wèisuān Wèisuān no Mi is a Paramecia Devil Fruit that allows the user to produce and expel gastric acid from their bodies that can melt down flesh and food; making the user a Living Stomach Human. No one knows what happened to it and people assume the previous user was not aware of its power's to begin with.
The word "Wèisuān" is Japanese for stomach acid. The English name of this fruit is the Gastro-Gastro Fruit.
Appearance
The fruit both resembles that of a salmon pink human stomach and a sweet potato with black swirl marks around the body. The light green stem is oddly placed on a side of the fruit and resembles a mouth that is burping.
Strengths and Weaknesses
Strengths
The user is able to produce stomach acids from any part of their body that breaks down any flesh or item that is food. Particularly, the stomach acid that is expelled from the user's actual stomach and ut of their mouth is more potent. When it hits food, they instantly become mush and can be disgustedly slurped up by the user to gain energy instantly. If it hits a being made of flesh, they start to liquify with each spray until they are just mush.
The stomach can be used by the user as a way to slide across surfaces or trip enemies.
Weaknesses
On average, it would take about 6 shots of stomach acid before a person is turned to mush. If the enemy can wash the acid away or dry off the acid, they restart the mush process. Clothing, armor and other materials not of flesh are either harder to digest or cannot be affected at all.
The user cannot produce a indefinite amount of acid and will eventually run out.
Devil Fruits focused on acids are all superior this fruit.
The user suffers from the standard weaknesses of Devil Fruit users.