Karma na Skill de Musou suru Isekai Harem Kaitoudan

Takio Asakawa is just your average office worker until—shocker—he dies and wakes up in another world. As a huge isekai fan, he’s totally prepared for his overpowered, laid-back fantasy adventure. But things don’t go as expected. The classic adventurer guilds are long gone, the kingdom is drowning in wealth gaps, and technology has advanced so much that guns have made swords and magic practically obsolete.