Sweet Potato Cake 8"

Sweet potato mousse base(sweet potato filling, milk cream, whole egg, sugar, water, sweet potato paste, wheat flour, egg white, milk, corn syrup, shortening, margarine, emulsifying agent, gelatin(pork), corn starch, baking powder, salt, citric acid, xanthan gum), Cloud cream[heavy cream(milk), whipping cream, sugar], White cake sheet(whole egg, wheat flour, sugar, egg white, milk, corn syrup, shortening, margarine, emulsifying agent, corn starch, baking powder, salt, citric acid, xanthan gum), Sliced sweet potato, Corn oil, Chocolate sign board(dark)