Ya know what's sad? A Spider-Man Unwanted Harem could work--though they'd need a Token Loli as the Anime Laws demand there be a Token Loli and Spidey doesn't have one in his immidiate cast.
What makes this fail, among other things, is that everyone involved is far to old to be behaving this way. As was stated, they're acting like extremely overemotional teenagers. The Age of the characters, sadly, is what BND was supposed to fix by making him "appear" younger.