Rinse the chicken wings with water and pat them dry with paper towels. Transfer the wings to a Ziplock bag and add the garlic, five-spice powder, soy sauce, oyster sauce, honey, and sesame oil.
Shake the wings to blend them well with all the ingredients, and marinate in the refrigerator for at least 2 hours or overnight.
Turn on the grill and cook the chicken wings over direct heat until they are fully cooked. Serve immediately.