Akari Kitasato

Akari is a 14 years old girl who has the ability to see the negative emotions of people, lies, and broken promises, and to see it as if they're monsters. But as long as it has no relation to her, she just pretend that she never saw those. When her grandfather passed away she started living with her brother who she didn't saw for 9 years. One day she meets Karas, a guy who can consume evil itensions, and that's when her world starts to change.