This is a single card replacement for the "Princess" card in the Love Letter: Love Letter: Kanai Factory Limited Edition. The new card is functionally identical, but has a male prince rather than the princess.
The Japanese Kanai Factory version comes with one Princess card. They released several alternate art versions of the princess card as promos in Japanese. One called "Short hair princess" one called "Glasses Princes" and one called "Prince". The AEG English Kanai Factory Art printing includes the promo for the Glasses Princess, but not the other two, which are available separately as promo cards.