 CST3x5 is a new Kagome superconductor with a two-dimensional Kagome lattice of titanium atoms. It has a flat band derived from the local destructive interference of block wave functions within the Kagome lattice. Around the Brillouin's own center, it exhibits 2276711 backslash math z underscore 2 2276711 z2 non-trivial topological surface states due to band inversion mediated by strong spin orbit coupling. This article was authored by Jingang Yang, Xinwei Yi, Zhenzhao, and others.