On 6 December, Misu is hired as a Santa Claus advertiser for a department store. On that same winter day, Liza runs away from the orphanage because once upon a time, her mum promised her that when she turned 8, she would get a bicycle from Santa Claus. Liza unexpectedly walks up to Misu and asks for the bike. But Misu, the selfish bar pianist, has no intention of buying a bike, and Liza won't let him go until he gets his wish.