2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/202868A perfect crystal of any level is constructed for the Kirillov-Reshetikhin module of $U_q(D_4^{(3)})$ corresponding to the middle vertex of the Dynkin diagram. The actions of Kashiwara operators are given explicitly. It is also shown that this family of perfect crystals is coherent. A uniqueness problem solved in this paper can be applied to other quantum affine algebras.27 pagesQuantum AlgebraRepresentation Theory17B37text