TV-Series
Description
Kafuka Fuura is student number 15 in Class 2-F, defined by an overwhelmingly positive outlook that allows her to find something good in any circumstance or to outright deny that anything bad is happening. She displays this optimism through actions like interpreting a suicide attempt as nothing more than an effort to increase one's height. Her appearance almost invariably features a smile, short black hair, and a hairpin fastened in one of her bangs.

Beneath this cheerful surface, she occasionally reveals a dark look in her eyes when saying something subtly unsettling, and certain lines hint at a potentially troubled history. This disquieting side is further demonstrated when her presence and gaze frighten another character so deeply that they try to flee. The name Kafuka Fuura alludes to Franz Kafka—an irony given her bright disposition, though it has been implied she may suppress psychopathic tendencies under her sunny exterior. Her interests include finding the best in everything, and she possesses an ironic fondness for the works of Franz Kafka, especially "The Metamorphosis."

Her background includes a radiant perspective on life despite having parents described as unstable; she cheerfully discusses her schizophrenic father and an occasion when her mother was possessed by a demon. One of her aspirations, drawn from a Buddhist text, is to become a god in the next life. This led to an incident in which she offered herself to be eaten by a tiger in pursuit of that goal.

In the manga's final chapter, a major revelation occurs: before the series began, Kafuka Fuura had died, and her organs were donated to several characters who comprise the majority of Nozomu's class. However, she was "too optimistic to die" and instead chose to possess a different female classmate in every scene. Additionally, "Kafuka Fuura" is a pen name. Her real name is believed to be Akagi An, inferred from being called "An" in flashbacks and the surname Akagi listed in an attendance book—a possible reference to "Akage no An," the Japanese title for Anne of Green Gables.

This cycle of possession allows her to continue living as Nozomu's wife, which requires all the girls who received her organs to live together and undergo a rotation of divorces and marriages to sustain the union regardless of whom she inhabits, causing the group to resemble a harem. This elaborate arrangement forms a key element of the character's conclusion throughout the official media.