Shinya is lacking in academic prowess, sports ability, bravery, and overall seems to be a failure. However, his fate takes a turn when he meets Haruna, a girl with the power to transform his life. According to her, Shinya is the chosen Messiah, the one tasked with saving her world while she acts as his protector. But is this true? Could Shinya's previous shortcomings be leading him towards this significant calling? And if he is indeed the Messiah, can he even save himself, let alone an entire world?
Additionally, included in this series are two one-shot stories: Night Keeper in volume 4 and Exorcist in volume 6.
