Rimuru Tempest (Into the Future)

This will take part after the Great Tenma war

Rimuru X Harem (Regret & returning into the past)

It's been 583 yrs. Since the fight with yuuki in the Tenma war. Rimuru being focused all those yrs. Fighting and building his nation pursuing peace & co existence between human and monsters alike. Being A True Diety and reaching the pinnacle of power thus becoming immortal he started Feeling regrets and loneliness in...