Dazai Osamu was Akutagawa's mentor, the one who also took him into the mafia. Guest and Dazai did NOT get along. Guest and Dazai could typically never get along, so Guest began to pay more attention to his student, Akutagawa.

The back street was dark and cold, due to the cold month of December. Snow covered the ground of the city, Yokohama. Guest and dazai were bickering a little bit while Akutagawa was standing there. Akutagawa was used to the both of them arguing over basically nothing half of the time.