On the first day of December, Amber and her new coworkers are working at the peppermint leaf cafe for the winter. One of Amber's new coworkers, Iclyn, receives an anonymous love note while closing down the cafe. As time goes on, Iclyn receives more anonymous love notes. The Christmas festival is approaching, and it seems that everyone has a date for the Christmas festival but Iclyn. Iclyn, Star, and Yukio are on the mission to find out who has been leaving out these cute mysterious notes for Iclyn before the day of the Christmas festival.