Edge at the back, matches the front color
Step 1 / 9
y': Whole cube: turn 90°, front face goes right
The edge is at the top back, and its top color matches the corner's front color.
White cross on the bottom, the empty slot at the front right. Do y' first, so the slot moves to the back right.
Step 1 of 9: y'. Whole cube: turn 90°, front face goes right