Life for Power: Demon Slayer

Others time-travel to become invincible, while he is to face... "suicide"? Modern corporate slave Ryan Chilton unexpectedly found himself in the demon-infested Blackwater Town. Reborn as a lowly constable, he planned to live a peaceful life. That was until a chilling encounter with the Phantom Bridal Sedan earned him a "death curse" right from the start! Just when things couldn't have gotten worse, he unlocked a martial arts system that drained his lifespan for power. While others spent money for strength, he spent life.