She looks like Nagisa but with longer hair and B Cup sized breasts.
She has a high pitched voice when she is friendly and a low pitched voice when she is threatened.
She uses her low voice constantly when around Karma, Nagisa, and Koro Sensei.
She refers to Koro Sensei as Brother because his mutated DNA was used on her.
Scientists claim she is a more perfected version of Koro Sensei and Itona because she has more control over her tentacles, can travel at a slightly faster speed than Koro Sensei, and can change her appearance based on the amount of power she wishes to use.
While in her 'Unkillable' form, Keira is a light blue color and is in the shape of a cat.
She has a bad smoking habit.
