Back In Time As An Ancient Demon Lord

This is a story about Rimuru Tempest, the great demon lord who got bored of his current life due to having achieved his goal of coexistence between monsters and humans. With nothing else to accomplish, he decided to travel to another timeline in the past to witness the events that took place before his birth and to find some solace and entertainment in this new timeline. Watch as he delves into the past to discover new things along his way to cure his boredom, meets new people,engages in thrilling battles and establishes new relations along his journey.