队友太弱所以贯彻辅助的宫廷魔法师，惨遭流放目标却是最强  The Banished Court Magician Aims to Become the Strongest, A Court Magician, Who Was Focused on Supportive Magic Because His Allies Were too Weak, Aims to Become the Strongest After Being Banished, Story of Lasting Period / Mikata ga Yowasugite Hojo Mahou