Taking Technology into the World

Everyone else has powerful powers, skills, and eye skills. Why do I only have a lot of technology? And you have to face a series of perverted enemies. Guns, Gatlings and the like are weak. Try out weapons that incorporate a variety of powers. Chakra Gatling, Haki Missile, Reiatsu Nuclear Bomb. Artificial gods, artificial immortals... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.