Combine the soy sauce, sugar, olive oil, white pepper and garlic in a small bowl.
Place ribs in a zip top bag and pour marinade over the ribs. Massage the bag so that the ribs are well coated in the marinade. Marinate overnight, turning the bag over periodically so that both sides of the ribs are evenly marinated.
Grill the ribs for 5 minutes on each side, or until meat has reached desired doneness. Meat will still be pink inside.
Serve immediately.
Recipe by The Little Chef at http://littlechefblog.com/korean-short-ribs/