Believing the bandits attacking a village are NPCs, Michio uses his "cheat" sword, Durandal, to slaughter them. The episode highlights his delayed shock at the blood splatter and the realization that he has actually taken lives.
Reviews of the premiere were polarized, focusing on its "trashy" yet well-executed nature: Isekai Meikyuu de Harem wo - Episode 1 discussion : r/anime
Episode 1 of (Harem in the Labyrinth of Another World) serves as a stark introduction to a world where game mechanics and grim reality collide. Unlike many "lighter" entries in the genre, this premiere focuses heavily on the visceral consequences of being "isekaied" and the immediate moral compromises the protagonist, Michio Kaga, makes to survive. The Descent into Reality