In a medium bowl, whisk together the tamari, vinegar, sesame oil, garlic, and ginger.
Place the wings in a shallow bowl and drizzle with about half of the sauce. Toss to coat and let marinate 30 minutes, tossing frequently to allow the wings to soak up the marinade.
Meanwhile, add the remaining sauce to a small saucepan. Stir in the allulose, brown sweetener, and water. Bring to a boil, then reduce the heat to a simmer. Cook 5 minutes, until beginning to thicken.
Remove from heat and sprinkle the surface with the glucomannan, whisking constantly to combine. Return to heat and simmer another minute, then set aside.
Preheat the air fryer to 400ºF and arrange the wings in a single layer. Brush with marinade leftover in the bowl. If you have a small air fryer, you may need to work in batches.
Air fry 18 minutes, flipping once. Brush the tops with some sauce and return to the air fryer for another 2 minutes or so.
Brush with the remaining sauce, sprinkle with sesame seeds and green onion, and serve hot.
