Yon

Margot is exploring an abandoned building at her boarding school when the alarm goes off, warning everyone that an "Event" is imminent. Outside, the other girls and their teachers scramble to safety on the other side of the perimeter fence. In a matter of seconds, deadly creatures will fall from the sky—anyone who doesn’t make it out will be left to their fate, unable to leave the school grounds until the Event is over. Out of breath, Margot realizes it’s already too late: she’ll never reach the fence in time. She’ll have to dig deep to survive.