Cut the king oyster mushrooms and konjac into bite-sized pieces.
Boil the konjac in hot water to remove any unpleasant odor.
In a pan, combine soy sauce, water, oligosaccharide syrup, and minced garlic, then bring to a simmer.
Add the konjac and king oyster mushrooms and simmer over low heat.
When the sauce has almost reduced, drizzle sesame oil and mix well.