We are proposing one more lattice structure with frustration that hosts flat bands, square-Kagome lattice. Using a molecular orbital representation, its flat band and flat dispersion only in some specific directions are discussed. By fine-tuning the parameters, the model further possesses spin-1 Dirac cone. Effects of magnetic field and the Hall conductance are discussed as well. The paper “Flat band, spin-1 Dirac cone, and Hofstadter diagram in the fermionic square kagome model” by Tomonari Mizoguchi, Yoshihito Kuno, and Yasuhiro Hatsugai has been published in Phys. Rev. B 104, 035161 (2021). See also arXiv:2103.03489.