『Kosame Amagai』

Kosame first appears at the end of the third manga volume when she heals Rina of her coma and introduces herself as"a magical girl from another magical girl site". She wears an eyepatch over her left eye and often carries with her a puppy plushie. Her wand is a snap cutter which she can use to heal her friends by cutting herself, and letting her blood flow into their mouth or open wounds. Kosame suffers from terminal cancer and the doctor predicted that her lifespan would be six more months left. Heavily depressed by the statement, she began practicing self-harming by cutting along her wrist. Her emblem is the letter Q located on the right side of her neck. Kosame's hair fades from silver to pale pink when she uses her wand. She is nicknamed'Mental Girl' by Rina because of her sudden insane personality that makes her obsessively want to cut herself, and needs to take medication to suppress it.