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, 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 his peers to assimilate other schools to reach the tallest heights of the ranking.

Looked down upon for only possessing two skills, Reckledam has given up on his childhood dream of becoming a warrior and has instead taken a job as a miner to support his chronically ill brother. But when his boss calls upon him to help defeat a monster rampaging deep in the mines, the people who mocked him learn that Reckledam hasn't merely learned the two skills he possesses, he's MASTERED them. Can he be persuaded to rekindle his dream and use his talents for the good of world?

(Source: MU)

Cha Hyeseong watches his crush drift away into stardom. He tries to preserve their relationship by enrolling into a school that produces idols -- the same one she attends. He's immediately assigned to debut in an idol group that focuses on acting, which brings more trouble than he asks for.

- MU