Akagi earns the nickname "Dr. Liver" (カンゾー先生 Kanzō-sensei) because of his work, though the townsfolk use it as a humorous dig at his persistent diagnosis. Though the broad circumstance of Japan slowly losing the war is the setting, many of the interactions and situations tilt into humor, for instance; the very music used for the doctor running from patient to patient has an upbeat and light-hearted tone.
Akagi earns the nickname "Dr. Liver" (Kanzō-sensei) due to his medical expertise, although the villagers often use it in a lighthearted manner to tease him about his persistent diagnoses. The war's gradual decline in Japan serves as the backdrop for humorous interactions and situations, such as the upbeat music accompanying the doctor's rapid visits to patients.