One common feature is the rapid power growth of the main character. They often start from a low - level state and quickly gain abilities that make them stand out. For example, in 'Overlord', the main character starts as a powerful being in a game world and his power just keeps expanding in the new world he gets transported to.
Sure. 'Solo Leveling' is a great one. The main character starts off relatively weak but gradually becomes extremely overpowered. His growth throughout the story is really exciting.
It has ended. The last chapters wrapped up the plot and brought the manhwa to a close. There might be spin-offs or related works in the future, but the main storyline is completed.
To win over your husband in a manhwa, first, focus on building trust. Be supportive of his dreams and hobbies. And don't forget to show appreciation for the things he does for you.