The Uon Uon no Mi (島島の実) is a Logia-type Devil Fruit, which allows the user to produce, control, and become gluons. Thus turning the user into a Strong Interaction Human (強い相互作用人間, Tsuyoi Sogo Sayo Nigen), Uon (オン) is derived from Gūruon, which is Japanese for “Gluon”. It was eaten by Ashura.