The Night before Christmas, a trio of discordant siblings took over their father’s yearly role as Santa Claus due to his absence. The brother, Klau, sees Santa as the mark of childishness, while the youngest sister Merry argues with the eldest sister Lumi over who should be Santa. Meanwhile, Merry’s friend was bullied and being called immature in school because she believes in Santa Claus; Merry got angry and she went to her brother for help. Will the presents arrive on time this year?