In the near future, the education system has evolved into a military competition between youths over domination of others where the stakes are high: The winner takes all from the loser. Schools are now mobile buildings that host their students, who are able to summon weapons of varying power and shape to battle each other. Mabaram starts from the bottom in this system and won't let his school, Metro, go down without a fight. He will have to pair up with his peers to assimilate other schools to reach the tallest heights of the ranking.