I'm not sure specifically as I haven't read this light novel in detail. But generally, it might be about a relationship that is more than just being friends (more than a couple in a sense of being closer than ordinary friends) but not quite lovers yet. It could explore the in - between stage, the emotions, and the situations that the characters face in such a relationship.
The 'more than a married couple light novel' could be about various aspects. It might focus on characters who are in a relationship that has more depth or complexity than what is expected in a normal married couple. For example, it could involve characters who have to deal with extra - marital attractions, or it could be about a couple who have an unusual living arrangement that makes their relationship seem more than just the traditional married - couple setup. It could also be about how society views such relationships compared to the norms of a married couple.
I'm not sure as I haven't read it, but usually in such novels, there are two main characters at the center of the relationship that is 'more than a married couple'.
Yes. One characteristic is a diverse cast of characters. For instance, in light novels with a large group of adventurers, each character has their own personality, goals, and relationships. Another is complex relationship webs. They may include unrequited loves, friendships evolving into something more, and rivalries that add depth. Take 'Date A Live' as an example. The protagonist has to deal with multiple female spirits, and the relationships range from hostility to affection, which is far more complex than a simple married - couple relationship.
Yes. 'More Than a Married Couple' manga came to an end. The creators decided it was time to finish the story and leave it on a satisfying note for the readers.