The Christmas Holiday has once again come to spread happiness and warmth to to those who celebrate them. Despite it being holiday, trains still need to operate for the sake of the citizen. Thankfully, the AZX train driver, Brid, is more than happy to spend her holiday doing her most favorite activities, which are working and drinking coffee. However, this time Brid and her squadmates has decided to decorate the train both internally and externally with Christmas decoration to boost the happiness of the AZX train passengers.