I'm sorry Masa-san. They appear so sad. Deep fried tempura seems to be a lot more festive. I do either tempura (prawns, oysters, scallops and veg), croquette (pork loin, prawn and oysters), fish and chips, or fried chicken every Sunday. I tried air-frying, sear-fry (like what you did in this videos). Nothing comes close to the good old deep-fry in oil. I use lard for tempura and croquette and tallow for fish and chicken. Animal fats sustain the crispiness longer and give a better aroma. I don't use vegetable oils at home at all nowadays, and the cooking smells better.