Heat the oil in a wok over medium heat until it shimmers, and then add the garlic and sweet soybean paste. Stir constantly until garlic is no longer raw but not browning. Toss in shrimp and stir-fry until they turn pink.
Add the greens and raise the heat to high. Stir-fry until the greens begin to wilt, then toss in the sprouts, cook another 15 seconds, reduce heat slightly, and toss in the noodles, detangling them as you add them.
Toss everything together, add the rest of the ingredients (except the pepper), and cook while stirring until the noodles have soaked up all the liquid (2 min). Adjust the seasoning and sprinkle with black pepper.