Mikuni "Miku-Miku" Mikuriya
About
She has an unspecified illness which could be lethal if she doesn't take regularly a 30000 Yen medicine. Her mother died because of this, and she was left in the custody of a man who offered her to become an idol to pay the bills for the medicines.
Her Cross Ability, Silence Regret, makes her see the thoughts of a person if she stares in his eyes for thirty seconds.