Can you recommend some similar light novels like 'borrow my happy marriage vol 1 light novel'?

The unique plot might be what makes it special. It could offer a different take on the concept of marriage compared to other novels.

Another one could be 'Fruits Basket'. It has complex characters and a heartwarming story about love and acceptance within a group of people. It delves deep into the emotions of the characters, much like 'My Happy Marriage' does.

Well, it's mainly about a girl's journey in a marriage. She might face various challenges and also experience some heart - warming moments. But to know the exact plot, one really needs to read the novel.

I'm not sure exactly who the main characters are without reading it, but I assume they are the same couple from the first volume who are working on their marriage.

I'm not entirely sure without reading it, but usually in a story about a marriage, there would be the two people getting married as main characters.

It could be the way the story is told. The author may use a special narrative style in 'My Happy Marriage Vol 4'. The details of the setting, the dialogue between the characters, and how the emotions are conveyed can all contribute to making it a special addition to the series. Maybe it dives deeper into the cultural context that gives the story a unique flavor.

One similar light novel could be 'Sword Art Online'. It also has an interesting fantasy world setting and engaging characters. Another one is 'Accel World' which shares some elements of adventure and unique relationships among characters. And 'Re:Zero − Starting Life in Another World' is also a great choice as it has a complex story and deep character development.

We can expect more character development. Maybe the main characters' relationship will deepen further. Also, new plot twists could be introduced.

Well, we can expect more character development. Maybe the main characters' relationship will deepen further. There could also be new plot twists.

Well, perhaps more character development. In previous volumes, we saw the relationship between the main characters evolving, and in volume 5, it might continue that trend. There could be new challenges for the couple to overcome, which would further strengthen their bond.