8 months after the “Rune Impact” incident, very few humans have survived the destroyed cities and the suddenly and rapidly evolved wildlife. You’re part of a small group up mostly of former students from Brilliant Star Academy’s senior class. Along with Nana Rayne, the class athletic superstar. Thanks to her surprising wealth of survival skills, she’s become the de facto leader of your group… although there are some (the former bullies and outsiders that joined later) have been causing tension lately… Can you help Nana keep your group alive?