The kagome magnet ${\mathrm{Fe}}_3{\mathrm{Sn}}_2$ has emerged as a key material for exploring topological spin textures, as well as intriguing transport phenomena driven by geometric frustration and spin-orbit coupling. While previous real space imaging studies have extensively characterized the $ab$ plane magnetic domain, the crystallographic axis specific evolution pathways of the ac, bc, or side plane magnetic domain structure, which are crucial to the material's strong magnetocrystalline anisotropy, have unlikely been directly visualized. Here, we report that the ${\mathrm{C}}_2$ symmetry observed in macroscopic magnetic properties and magnetotransport measurements breaking the crystal's threefold rotational symmetry. Using Lorentz transmission electron microscopy, we directly observe domain evolution along two principal crystallographic axes [100] and [120]. The results reveal a fundamental contrast: domains in the (100) plane rotate continuously from the $c$ axis to the $ab$ plane during cooling, while in the (120) plane undergo magnetic domain reconstruction through metastable cross-tie domains. This crystallographic axis dependent behavior directly manifests the underlying magnetic anisotropy and the microscopic mechanism for the emergent ${\mathrm{C}}_2$ symmetry. These findings establish ${\mathrm{Fe}}_3{\mathrm{Sn}}_2$ as a model system where crystal direction dependent spin-orbit coupling governs anisotropic domain reconstruction in a frustrated kagome lattice.

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• Ferromagnetism
• Magnetic domains
• Magnetic texture
• Magnetotransport
• Ferromagnets
• Kagome metal
• Lorentz microscopy
• Transmission electron microscopy