Z3 Berry phases for XXZ quantum spins on Kagome lattice are calculated by the quantum Monte Carlo method under a condition with fixed magnetization. The phase diagram of the model is discussed by using this Z3 Berry phases. Effective corner states of the spin system are discussed with effective boundary chains of the triangle shaped systems. Have a look at the paper, “Quantized Berry Phase in the Spin-1/2 XXZ Model on the Anisotropic Kagome Lattice” by Katsumi Aoyagi, Kota Ishii, Yasuhiro Hatsugai, and Tohru Kawarabayash, which has appeared on May 21, 2024 in J. Phys. Soc. Jpn. 93, 064703 (2024).