OVA
Description
Kafuka Fuura embodies extreme optimism, constantly reframing negative events positively—interpreting a suicide attempt as an effort to grow taller, for instance. Her appearance features a constant smile and distinctive short black hair with a hairpin, though her eyes sometimes project a disturbing presence that terrifies others. This cheerful demeanor potentially masks underlying psychological complexities, including possible trauma or suppressed psychopathic tendencies, as suggested by her namesake reference to Franz Kafka.

Her background involves a troubled family history, including a schizophrenic father and a mother reportedly possessed by a demon, which she discusses cheerfully. Before the series began, she died and donated her organs to multiple recipients who later became her classmates and teacher, Nozomu Itoshiki. Her spirit persisted due to being "too optimistic to die," leading her to possess the bodies of female classmates who received her organs, enabling physical interaction. Her original identity is revealed as Akagi An, referencing Anne of Green Gables ("Akage no An" in Japanese), supported by flashbacks and school records.

Kafuka demonstrates manipulative tendencies, frequently inciting jealousy or conflict among classmates while remaining seemingly detached from romantic rivalries involving Nozomu. She occasionally expresses affection for him, including a disguised confession and impersonating other love interests. Narrative conclusions reveal her enduring significance to Nozomu: one ending depicts a symbolic reunion in a cliffside church seven years later, while an alternate conclusion shows a coercive system where Nozomu marries her host bodies in rotation to sustain her presence, later expanding to include new organ recipients.

In the *Zan Sayonara Zetsubō Sensei Bangai-chi* OVA, she advocates for "third options" when faced with binary choices, proposing absurd alternatives like burying one's lower body to avoid choosing underwear styles or adopting bird behavior to resolve pet preferences. She also fixates on metaphorical "switches" within people and objects, linking innocuous actions like patting a classmate's back to activating hidden mechanisms, reflecting her theme of interconnected unpredictability. Her philosophical outlook includes aspirations to divinity, influenced by Buddhist texts describing self-sacrifice, leading her to attempt dangerous acts like offering herself to a tiger.