In the novel, the protagonist Yiheng possesses invincible strength and embarks on adventures in a fantasy world filled with all kinds of monsters, fighting constantly to prove his worth as a hero. The story is full of passion and excitement. Its humor comes from the contrast between Yiheng's ordinary life and his overwhelming power. His abilities come from his loving father, who trained his middle finger to flick eggs when Yiheng was a child and suffering from autism. Although his father was always in poor health, he kept working to treat him. So Yiheng has always searched for a way to cure his father. When he finally enters the fantasy world, he can flick away his father's illness with his middle finger. The real world and the otherworld, the Realm of Afflictions, are mirror images of each other.
- Human negative emotions give birth to "Afflictions." Top doctors can earn the title of "White-Clad Walker" and enter the otherworld.
