Purim (プリム) is a character that has yet to formally appear in any series. She is a Orca.
Purim has a pale skin and a long, black hair with two white spots and a dorsal fin on her head. Her eyes are grey, and her fingernails are painted black. She wears a black and white Lolita []dress and black boots.
Not much is known about her.
Not much is known about her past, After all, DSP did refer to Purim as “Big Sister Orca"
Up to this day, Purim has only appeared in some of Deep-Sea Prisoner's illustrations.
It's unknown who she has any kind of relationship with.
- She has been stated in a QnA to be the "Older sister of the orcas".
In the same QnA, Deep-Sea Prisoner also confirmed that Purim has no relations to Idate.