This guy gets it, you can always see how a romcom story will tackle it's romance by looking at the cover.
If only one girl in the cover and it's the same everytime, then it's pretty clear how the story will progress.
If there's several people in the cover, mainly mix between male and female then it's has a pretty strong friendship story going for it.
If there's several girls in the cover, those are harems, ALWAYS.
If only one girl in the cover but different girl each time, get the fuck away from that shit, it's a dumpster fire and a red flag.