From the Tokyo souvenir brand "Tokyo Banana World", it is a spring-only limited-time product "Ginza's early spring lemon cake". Will be released on February 9th. Prices start at 483 yen (tax included) for 4 pieces.
This is a sweet made with the theme of "The sign of spring is the scent of lemon." The fluffy sponge cake contains a special double cream. "Refreshing lemon cream" with fresh lemon juice and "mellow milk cream" are layered in two layers, and they melt in your mouth and spread.
The stores are JR Tokyo Station, Shinagawa Station, Ueno Station, Haneda Airport, and some of the Tokyo Banana World product dealers.