Koji Kiyoshi, a 12-year-old boy, have been studying about Crystal Monsters since he was young in order to become a Crystal Brawler. After years of inspiration, he enrolls in the Crystal Brawler Junior High School to become a Crystal Brawler. But not only he learns that there are strong Crystal Monsters in the world, but Crystal Brawlers fuse with them in order to gain supernatural powers together to fight. Koji, and his new Crystal Monster friend, Roaracryst, held a dream in which they become the strongest yet!The series can be seen here
