The friendly old man with stylish clothes then drops the Unmarried Mother, actually his younger self, at an outpost of the Washizu Bureau, a time-traveling secret police force that fixes events in history, such as making sure that a mahjong is so bungled that it does not destroy humanity. He has just recruited himself.
Finally the friendly old man with stylish clothes returns to 1970, arriving a short time after he left the mahjong parlor. He yells at a customer playing "I'm My Own Grandpa" on the jukebox. Closing the mahjong parlor he time-travels again to his home base. As he beds down for a much-deserved rest, he contemplates the scar left over from the Caesarean section performed when he gave birth to his daughter, father, mother and entire history. He thinks "I know where I came from—but where did all you 1-Pins come from?", possibly referring to his other selves, whose actions he observed and directed, or to his audience - the readers.