She was just a normal 17 y/o girl that tragically died from trying to swallow a takoyaki whole as a dare. The Almightly, in a frustrated rage at the stupidity of deaths happening to young people, decides to punish her by having her soul reincarnate endlessly as a sentient Takoyaki until her soul rots away entirely. Stubbornly, and in her new fishy, doughy state- she resolves to find a way out of her punishment and to get revenge on the Almightly.