Large-scale, high-velocity downflow in the Hα far wing image (+0.1032 nm) is presented in the first panel of the top row, and its evolution after five minutes is presented in the first panel of the bottom row. The co-spatial and co-temporal warm coronal loop is visible in the SDO/AIA He II 30.4 nm (second column), Fe IX 17.1 nm (third column), and Fe XIV 21.1 nm (fourth column) images as shown. The blue dashed box (top row) represents the FOV of Figure 4, for a closer inspection of the coronal loop-leg substructures. The white dashed box in the bottom row represents the coronal loop-top and the FOV of Figure 5. The black dashed box reveals an adjacent closed hot-loop system, with co-spatial dark flows (in Hα) that extend along the loop-legs toward the footpoints.