Hitomi and Gaku have been friends since they were students. After dating for nearly 10 years, Hitomi married another man after parting from the part-time jobber's studies. The days passed, but Hitomi did not forget about his studies. One day, I got a call from Gaku. "It's been a long time. How are you? Let's meet together next time, stay overnight." They decided to meet in front of the station where they were always meeting.