He prayed to God that his mother would recover and made a wish to Santa that he would "stand in" for his mother and deliver him a little sister. Now, years later, his wish has been granted, leaving Haruma with a sudden addition to his meager household.
He prayed for his mother's recovery and wished upon Santa to take her place and bring him a younger sibling. Years later, his wish came true, leaving Haruma with a new family member.