Concubines Lead to Strength: The Path to Immortality Begins with Taking a Spouse

So far, I’ve read about 200 chapters. The story is quite entertaining and not too slow or too fast. The characters receive a lot of attention, and the buildup of the story is quite good. In contrast to many other stories I’ve read where the main character has no power or cultivation and somehow gains a system that makes them incredibly powerful, this story seems to have a slower pace. The main character does not gains super power immediately, and his relationship with their wives or partners is very intimate and close, rather than being a number that they only know the names of and don’t really know anything about.