I came across this in a department store. In most Japanese department stores they have a big food court in the basement selling all kinds of expensive stuff. Well, a little cake isn’t pushing the boat out too much.
This was described as a pancake cake I think because the sides took on a pancakey texture. Quite nice actually as the center was quite light and fluffy (like most Japanese cakes). The cream on top is quite buttery. Overall a good cake.