Kouryakuhon wo Kushi Suru Saikyou no Mahoutsukai ~＜Meirei Sasero＞ to wa Iwasenai Ore Ryuu Maou Tobatsu Saizen Route~ (Associated Names)

Magnus, a mage who always got yelled at “just shut up and follow my orders!” by the Hero because he was deemed “useless”. One day after getting fed up with his party he left, upon leaving he met a merchant that sold him a mysterious book. And it turned out that the book which was…