I Became the Unfair Contract Slave of the Grand Grimoire

"So my master has finally appeared. You are the one who read me." The legacy of the Archmage—the Book of Truth. Binaeril Dalheim, a failing student of the magic tower Elfenbein, stumbles upon the Book of Truth by chance. "I will awaken your talent for magic. In exchange, you must complete me." With his dormant talent finally blossoming, the once-failing boy sets out on a journey to recover the scattered truths of the grimoire.