Susumu (Udai Iwasaki), who witnessed the couple's quarrel, unintentionally calls out to Nana (Riho Yoshioka), a woman who hangs down. She decided to lend her a chair (No.14) that Susumu had because she had just moved and couldn't replace the light bulb by herself, and they started walking together. The two are relieved by the sightings of a rumored person, Speedster, in the city, but each has a secret that cannot be told to anyone.