The power of the human mind

Isla Crane isn't your typical teenager. She has a special ability. Ever since she was born she can see some numbers when she looks at people in the eyes. Those numbers indicate how dangerous that person's mind is and how dangerous they are in terms of ability. Usually she sees people with numbers from 0 to 2.(the numbers are from 0 to 10, 10 being the highest)
She avoids people with numbers over 2, because she is so very scared of them, but only in terms of mind. She made a deal with herself. When she will meet a person with 10 she will not avoid them and she will surpass her limits.
But one day she does......he's name is Hak Ackerman.
What will happen between them? Will Isla escape her dark fears?