Last Round Arthurs (Light Novel) - Volume 3 | Taro Hitsuji

A King obsessed with justice, Hitoshi Kataoka is making his presence known in the battle for the throne, flanked by a wicked witch and his Jack, Sir Tristan. When Luna goes up against them along with her team, she finds herself beaten down by his accomplices to the verge of death. As Luna fights for her life, Rintarou realizes he must battle the demon inside him to reclaim his powers, recover the place where he belongs, and return to those precious to him.