Build Divide

In a city where the King reigns supreme, your strength in Build-Divide determines everything... There is a rumor circulating in Shin Kyoto. "Anyone able to defeat the King in Build-Divide shall be granted whatever their heart desires." In order to challenge the King, one must first enter the battle known as Rebuild. There, they will have to complete the "Key." The young Teruto Kurabe vows to defeat the King so that he can get what he longs for. He, with a little guidance from the mysterious Sakura Banka, dives headfirst into the Rebuild Battle. (Crunchyroll)