Mitsunori is leading a very ordinary life after marrying Takako, a junior in his university circle. One day, Takako's friend Ayumi, who was in the same club, came to stay. Mitsunori, who has liked Ayumi for a long time, could not suppress his heartbeat. "I wish Ayumi was my wife..." Mitsunori indulges in selfish delusions. One night, a dream-like big chance suddenly came! The train stopped and his wife Takako couldn't come home.
