Tokyo: Transmigrating and Gaining Menma’s Abilities

Office worker Mo Wen drowns and dies, only for his soul to transmigrate into the body of another overworked office worker in an alternate-world Tokyo, where he binds himself to the Will of Fire System.

With the abilities of Uzumaki Menma, which he gains from the start, he slays demons and exorcises evil spirits in a world plagued by supernatural phenomena. As he gradually unlocks even greater powers and more powerful templates, his immense strength and air of mystery carry him to the top, making him the strongest person in the world.