I'm not sure specifically as I haven't read it in detail. But generally, it might be about a woman's journey to enhance or improve her husband in every possible way, perhaps in terms of his skills, personality, or social status.
I don't know for sure since I haven't read the novel, but I assume the main characters would be the wife who is on the mission of levelling up her husband and the husband himself.
Well, for me, Han Solo is one of those characters that is better left with some ambiguity. His origin story could potentially be a let - down. I love the idea of him just popping up in the Star Wars universe as this cool, roguish character. Telling his origin might lead to a lot of backstories and explanations that could make the character seem less cool. For example, if we learn too much about his early days, it might take away from his 'lone wolf' persona that we've come to love.