The first problem: Iris’s life is supposed to end five days after her sixteenth birthday according to Fate.
The second problem: Iris’s Guardian Angel Gail refuses to follow Fate and comes up with a plan that includes getting the angel Gabriel to fall madly in love with Iris. Since an Angels Love is immortal, Iris would be saved.
The third problem: Gabriel, as Gail calls him, is not an angel. Actually, quite the opposite.