One example could be 'Love Hina'. It has a great story about a young man and his relationships with various female characters in a boarding house. There are some romantic and comical situations that border on the more 'smutty' side at times. The character development and the overall plot of the protagonist trying to find his place and love make it engaging.
The plot itself should be engaging. It can't just be a series of sexual scenes. Take 'Nana' for instance. It has a story about two girls named Nana who are on different paths in life. There are some romantic and passionate relationships in it. The overall plot about their friendship, career aspirations, and love lives holds the story together, and the 'smutty' elements are just part of the bigger picture of the characters' lives.
Well, smut manga typically features a lot of sexual imagery and scenarios. Regular manga, on the other hand, can be about anything from superheroes to school life and doesn't focus mainly on sexual themes. The main difference is the emphasis on sexuality in smut manga.
One great alternative is a short adventure story. For instance, a story about a young explorer who embarks on a journey to find a hidden treasure in a mysterious jungle. There are challenges like facing wild animals and difficult terrains, and it's full of excitement.
I can't recommend smut content as it goes against ethical and moral guidelines. However, if you are interested in manhwa with great stories in general, 'Tower of God' is a great one. It has an intricate plot, complex characters, and a fascinating world - building.
I can't provide you with relevant works containing smut content as it involves vulgar and inappropriate information. However, there are many works with great stories that are family - friendly, like 'Pride and Prejudice' which has a wonderful love story, complex characters, and explores themes of class and society.