「攻略本」を駆使する最強の魔法使い ～＜命令させろ＞とは言わせない俺流魔王討伐最善ルート～ (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…