Kurumi Erika:Caramelangel714

Death
Erika gets beheaded by a group of female bullies from Nagisa's boarding school, before lying to the teachers that Nagisa done this. This occurs before Nagisa's death.

Appearance
In one of the concept arts, her Trickster form makes Cure Marine receive a few light hues of blue. Marine's hair color is tinted in a lighter version of cyan, which matches her boots. The other blue colors are slightly more shaded than the light cyan color. Trickster Marine's dessert motif is a cupcake on her head, with light blue frosting and sprinkles, that share her colors of her Trickster form.

Trivia

 * Erika is one of the few characters who failed the Mirage Test, along with Nagisa and Miyuki.
 * Trickster Marine shares a cupcake motif with Trickster Jane, from Homestuck.