Back · yellow on the left
Step 1 / 4
U: Two layers around the top corner: turns clockwise (looking at the top corner)
The yellow-green edge is at the top back, with yellow on the left face.
U brings the edge to the top right with green in front. Then do L' U L.
Step 1 of 4: U. Two layers around the top corner: turns clockwise (looking at the top corner)