Oyafune Suama (親船 素甘 Oyafune Suama?) is a character introduced in Toaru Majutsu no Index as a math teacher in A Certain High School. As the daugher of Oyafune Monaka, one of the members of the Academy City Board of Directors, her very existence is a leash the people from the Dark Side of Academy City uses on her mother. A good-looking woman, she is a woman who is obssessed with beauty.