Reading it again, your points do make sense, but I really have no recollection over anyone trying to get close to swallow—for affection or romantic reasons—other than the maid. Personally, the problems with the plot doesn't really bother me that much. I still find it enjoyable. Thank you for...
I have to say, some of your points are valid, but some seem to be questionable.
Firstly,
I agree that the series would be more enjoyable with more world-building, but I really need to get this off my chest.