In Salinger’s story, a bananafish is a metaphor for consumption and destruction—a fish that gorges itself on bananas until it becomes too fat to escape its hole and dies. Akimi Yoshida borrows this concept to represent a drug that destroys the mind.
One night, a dying man stumbles into Ash’s hideout. The man is a former soldier suffering from a psychotic break. Just before he dies, he mutters the words: Banana Fish