Counterclockwise cycle
Step 1 / 7
U': Two layers around the top corner: turns counterclockwise (looking at the top corner)
All three green triangles are on the front. The left edge's other color is yellow.
The solved back corner is at the back, green facing you.
Step 1 of 7: U'. Two layers around the top corner: turns counterclockwise (looking at the top corner)