Prior to visiting The Earth, Tamagotchis did not celebrate Christmas. However, Tamagotchis returning home had learned about the Earth's Christmas tradition, and believed that Santa Claus was real.

Living in the north was a Mayor who watched over a small village. He realized that the young Tamagotchis were now celebrating Christmas and were expecting to see Santa Clause. Wanting them not to be disappointed, he decided to take up the role of Santa himself. This triggered him to evolve immediately into a naked Santaclautchi and began to prepare himself for Christmas.