The original novel is by Shugoro Yamamoto. It depicts a friendship that transcends social status and age, featuring the captivating monologue by Kunie Tanaka and moving expressions of the soul. When the thief Denkuro (Tanaka Kunie) sneaks into a dilapidated mansion, he finds a young samurai (Furuoya Masato) sleeping there. Despite being threatened, the young samurai remains unfazed and helps Denkuro when he falls into a hole in the floor.