Arafo Otoko no Isekai Tsuhan Seikatsu

The Hitchhiking Otaku of the Parallel World. Arafo is a laid-back, sarcastic otaku who, after a mysterious incident, finds himself transported to a parallel world filled with fantasy, magic, and monster girls. Despite his initial disbelief, Arafo embraces his new circumstances and uses his knowledge of anime, games, and light novels to navigate this strange new world. He's not the strongest or the most skilled, but his unique perspective and adaptability make him a valuable ally to the monster girls he meets along the way.