Gun-Ota ga Mahou Sekai ni Tensei shitara, Gendai Heiki de Guntai Harem wo Tsukucchaimashita!?

Hotta Youta dies on his way home from work one chilly night and awakens being carried by a woman with bunny ears. The story involves his reincarnation in a fantasy world where he uses modern firearms in a setting dominated by magic. He finds himself surrounded by a group of women who form a harem around him. The narrative centers on his new life in this world, where he has an advantage due to his familiarity with contemporary weapons.