That Time I Visited Another World

It's been thousands of years since the Great Tenma War, Tempest became the most advanced civilisation in the world and with everlasting peace, Rimuru decided to have a moment of rest and isolated himself in the ends of space and time where no one can disturb him, but after waking up the world was still the same so he decided to visit other worlds

This is my new fanfic
all the characters and images that I will be using are owned by Tensura and I was caught up in a Hero summoning but the world was at peace

I do not own any of the images and Novel and this is collaborative fanfic only for fun thank you and I hope you enjoy this story of mine