Death March Parallel World Rhapsody (Manga) Vol 15

Satou's epic battle against the Demon Lord rages on as he endeavors to eliminate the source of the fiend's power, and revenge is far from his only motivation to defeat his foe. With images of Sara's lifeless body flashing through his head, Satou's mind turns to resurrection-and he's got no time to waste if he ever wants to see her again... Yen Press
(W) Hiro Ainana (A) Ayamegumu, Shri