Not sure if this has been done before but the idea is this, there is a young woman who looks to be within the 16-18 age range, has iridescent eyes and hair color, and suffers from a combination of Narcissistic Personality Disorder and Delusions of Grandeur.
She also unknowingly emits an unknown form of gamma radiation* that causes people within a 4 meter radius (may reduce it) to have extreme emotions for her (whether positive or negative varies). The more time they spend near her, the more their mind degrades to the point where they start suffering from nosebleeds, seizures, brain damage, and even malignant brain tumors.
*Although I'm not sure if I should switch the radiation aspect with telepathy.
Also before you ask, yes I have read the Mary Sue Who tale.
