Obviously, the husband is one of the main characters as the title is centered around him. There must also be the person who is responsible for 'leveling him up', perhaps the wife or a close friend.
One key theme could be personal growth. As the title implies, 'leveling up' the husband might involve his development in various aspects like character, skills or status. Another theme could be relationship evolution. The process of 'leveling up' is likely to have a significant impact on the relationship between the husband and the other characters in the novel, perhaps leading to a stronger bond or a new dynamic.
Sure is! Solo Leveling is a well-known manhwa that has captured the attention of many readers. It features exciting action and interesting character development.
Well, you could try doing things he likes together to strengthen the bond. Also, showing appreciation and support for him can go a long way. Sometimes, small gestures of love and care can make a big difference.
One way could be to have heart-to-heart conversations regularly, listen to his perspective, and work on resolving any conflicts together. Surprising him with small gestures of love and support might also make a difference.