In the near future, the education system has evolved into a military competition between youths over the domination of others. The stakes are high here: the winner takes all from the loser. Schools are now mobile buildings that host their students, which 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 an unexpected transfer student to assimilate other schools in order to reach the tallest heights of the rankings.