3.193 out of 5 from 325 votes
Whenever Ion Tsuburagi is in trouble or has a wish, she chants her name letter by letter and something good happens. However, nothing good can come out of student president Kouki Shirashi having a crush on her that she doesn't return! While escaping from him one day she runs into Mikado Hourai, president of the Psychic Powers Research Society. And soon after she finds an item that he's researching, ultimately leading her to acquire mystical powers of her own! After this discovery Mikado confesses to her, but Ion can't help but think he only wants her around for her powers alone...
Twenty-year-old Maiko Ninomiya has just returned to university after being held back a year; she rescued a dog from being hit by a car and was struck herself, missing half a year of school in the process. She's been having strange, erotic dreams about an unknown man since the incident - that is, until she meets the man in real life! His name is Yukiya Nagase, and he's the new literature professor at school. Maiko soon discovers that the woman he loved, Haruka, gave her blood during the accident and later died, leaving behind Yukiya and a young son. As she carries Haruka's blood inside her, Maiko feels and remembers some of the same things as her benefactor, and now Yukiya wants Maiko for his own as a way of communicating to Haruka. Together, the three begin to live together and their feelings deepen. But does Yukiya see Maiko as more than just a memory of Haruka?
Both manga share the same mangaka and are about a heroine with pyschic powers. However, while in Mistress Fortune both the female lead and male lead have always had psychic powers, in I.O.N the heroine gains psychic powers thanks to an object.