Arifureta: From Commonplace to World’s Strongest (Manga) Vol. 15

DEATH AND REBIRTH?!
Eri and Hiyama have betrayed the party, slaying Kaori in the process. Although the tide begins to turn against the foul traitors, what can be done about Kaori? Hajime tries to resurrect her with his newfound ancient magic, but…why is she refusing to return to her body? The determination of a fallen heroine brings forth a shocking new power in the aftermath of a tragedy!
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?