In the fictional Tokyo suburb of Mahoro, Tada Keisuke works as a "benriya" - a general problem solver for hire.
One day in January, former classmate Gyoten Haruhiko appeared unannounced. Back in their schooldays, Haruhiko was a quiet person who rarely talked. Now, Haruhiko is talkative. Both men are over 30 years old and divorced. Without giving an explanation, Haruhiko suddenly asks to spend the night at Keisuke's home. Keisuke turns down
