My name's Lavi Medra and my best friend is known as the craziest most fun student of Arven High. Students call her the daredevil. She's been my best friend since elementary school. The whole school goes dumb and boring once she stopped studying here. She has been banned and she cannot study in Arven High anymore. Now the question is, who will be the next daredevil, who claims to be crazier than Mary?!