The Angels of The False God

Two female angels were sent by the god to the mortal world, and were born as a human girl Tico and half-elf Brier.
Without the memory in the heaven they gradually realize their responsibilities to against the devils. But at the same time they found out all the tales of the god were fabricated and the world shall not be ruled either by devils nor the false god.
Would it be a luck or a doom to get a fate determined by a deity?

The story begins with the childhood of Tico in Isle of Afterglow. She was an unfortunated girl lost her father but saved her mother later with friends' help.
After that she was sent to continent to learn to be a ranger. Then she would met Brier and took up the missions of an angel.