Saviors

One day Mei is racing with a friend and she runs into a mysterious boy named Andrew. Mei has magic where she can create anything from thin air. Alice (Mei' friend) also has the same powers. The next day Andrew meets Mei at her very own door and convinces her to join a group called the Saviors. Alice joins too and what they don't realize that moment is that they fight against monsters. To add on Andrew didn't mention that if you let the savior marking become all black you will disappear. Mei finds out the secret Andrew has been keeping and she never understands what his power is until she discovers his secret.