Fantasy: Taking a Sister on a Double Cultivation Journey

The world is so big, let's go and see it together. What would happen if Chinese fairy tales, bushido, beast masters, steampunk, Cthulhu, 98K, M4, Ultraman, Naruto, pirates, Jack the Ripper, Catholicism, Julius Caesar, pyramids, demon world, heaven and hell were all written in? I've always been curious. Stewing existing history and culture randomly, the protagonist keeps collecting girls on his journey. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.