probably to attract readers who's really in it for the smut?
I think that too. imo, one more point is that there are people(eg.me) who got lost interested in storyline if their ideal roles get wronged in smut scene. to prevent that, author might prove their roles first with actual bed scenes? I'm not sure if that makes sense tho.
Maybe it's the "sex sells" idea
hmm I just found new interesting idiom I never knew before lmao. YES that's the most part of it.
it does, its a proven marketing strategy and they're putting it to use for reaping the benefits
Yup, putting sexy people in ads or in trailers gets attention. Same for manhwa. Look at the popular games on steam and youre bound to see nsfw games
can we discuss the actual theory of most manhwas displaying two main characters saving hex in very first panel of very first episode before we get to know the full storyline? Cause I don't even see it as coincidence and it becomes like a pattern lmao