Bitter Honey

Mitsu no aware is a movie starring Fumi Nikaidô, Ren Ôsugi, and Seiko Iwaidô. Based on novelist Muro Saisei's 1959 book, Bitter Honey narrates the story of a poet who informed by his physician of his impending death finds renewed...
Akako, a shape-shifting goldfish in the form of a coquettish nymphet clad in diaphanous red dresses, naively plays the role of erotic muse and adoring pet for an aging writer seeking greatness. Things quickly get complicated for the odd couple, however, when the writer's deceased former student/lover enters the picture as a ghost and helps Akako realize her own desires, activating her agency and frustrating the one-sided male fantasy the writer is so keen to continue.