Rimuru's journey (Tensura X Demon slayer)

It's been 80 years since Yuuki's defeat. As a ruler, rimuru has become more and more restless ,as the paper towers become higher and higher. One day, Rimuru got a brilliant idea. He was going to visit another world, to cure his boredom! He then proceeded to ask Ciel If she could teleport Rimuru to another world. After...