Spatially resolved [O III]λ5007 emission in TN J0121. Left: [O III] moment 0 map the clumpy and asymmetric ionized gas distribution, with the brightest emission concentrated near the radio core (magenta contour lines) and a secondary, spatially offset clump lying ∼2″ to the east. Middle: [O III] W₈₀ map tracing the velocity width of the [O III] line, which peaks in the vicinity of the radio center and shows localized broadening (>1200 km s⁻¹) indicative of AGN-driven kinematic disturbance. Right: radial W₈₀ radial profile along the putative jet axis. Similar to the 2D map, the average W₈₀ radial profile also shows relatively modest line width (∼500–800 km s⁻¹) across most regions but exhibits a spike to >1200 km s⁻¹ near the radio core. The compact radio morphology in TN J0121 might host a small-scale jet underneath, which is pushing the gas and disrupting the kinematics.