``Ken-kun, would you mind showing me your grandson's face now?'' I couldn't hide my agitation at my father-in-law's words. What was supposed to be a fun hot spring trip with the whole family ends up being asked to have a baby with his wife... As instructed by his father-in-law, after a month of celibacy, the day of his hot spring trip arrived, but as expected, his wife refused to have a baby with him. While wandering around the inn to relieve his frustration, he happens to witness his girlfriend's mother-in-law taking a bath.