Arifureta: From Commonplace to World’s Strongest (Manga) Vol. 12

THE MAD GOD’S DISCIPLE DESCENDS!
To find his way back home to Earth, Hajime set out to conquer all the world’s ancient labyrinths, and claim their magic for his own. After taking down the undersea ruins of Melusine, he and his party are enjoying some much-needed beach-side R&R. But that momentary peace isn’t fated to last–he soon receives news that his old high school teacher, Aiko, has been kidnapped by Church zealots. Hajime and his party rush back to rescue her, but a fated encounter with the mad god Apostle looms ahead!
Series Overview: Seventeen-year-old Hajime Nagumo is your average, everyday otaku. However, his simple life of pulling all-nighters and sleeping in school is suddenly turned upside down when he, along with the rest of his class, is summoned to a fantasy world!
While the rest of his class are blessed with godlike powers and tasked with saving the human race from extinction, Hajime’s job, a Synergist, only has a single transmutation skill. Will he be able to survive in this dangerous world of monsters and demons with only a glorified blacksmith’s level of strength?