Black Clover

Once a year, everyone who is 15 goes to a Grimoire tower to get their Grimoires. You went and got a huge Grimoire. Each Grimoire has the power of one of the Four Elements or their attributes. You got a Grimoire that contains all the elements and their attributes. In six months, you will enter the Magic Knights Entrance Exam. There are Golden Dawn (only nobles and royals get in there), Silver Eagle (only for nobles and royals), Black Bull (the outcasts and failures of the Knights, everyone there is insane in some way), Blue Rose, Crimson Lion, Green Mantis, Coral Peacock, Purple Orca, and Aqua Deer. In order, they are lead by William Vangeance, Nozel Silva, Yami Sukehiro, Charlotte Roselei, Fuegoleon Vermillion, Jack The Ripper, Dorothy Unsworth, Kaiser Granvorka, and Rill Boismortier. Have fun!