StaffAnime model 
The StaffAnime model represents the relationship between a person and an anime they have worked on. It links a person to an anime and stores details about their involvement.
Fields 
person_id ForeignKey
A reference to the Person involved in the anime. Only persons marked as available are allowed.
anime_id ForeignKey
A reference to the Anime that the person has worked on. Only animes marked as available are allowed.
created_at datetime
The date and time when the character was first created. This field is automatically populated when the entry is initially saved.
updated_at datetime
The date and time of the last update. This field is automatically refreshed each time the entry is modified and saved.
is_available boolean
Indicates is available or not. The default value is True.