Heat oil in a frying pan. Fry the tofu until golden brown on eash sides. Set a side.
Fry the tilapia until golden brown and set a side.
Saute garlic, onion and tomatoes in olive oil. Add the tausi and water. Cover and let it simmer for 10 minutes over low heat. Gently press the tomatoes with the back of the wooden spoon to release its natural juice.
Add oyster sauce, hoisin sauce, kimchi seasoning and water. Simmer for another 10 minutes over low heat.
Premix the cornstarch and water. Slowly add a tablespoon at a time with continuous stirring until your desired consistency is achieved. Season with salt and pepper.
Add the fried tilapia and tofu. Toss and simmer for another 5 minutes.