Isekai Editor: I Decided to Save the World With Manga

Synopsis

Hiroki Ichinose, an unknown mangaka, is suddenly summoned to another world, along with the manuscript of the first episode of his new serial, which he was just about to submit for publication. As he realizes that he won't be able to submit his drawings in time, his summoner Laila calls him the "Messiah-sama"...! (Source: Tonari no Young Jump, translated)