It's LITERALLY the Same Game.
I mean on the one hand, these sex sim things are basically all the same, minus the little tweaks and changes here and there. There will always be games like this and PS doesn't really "own" the idea. Also, competition is generally good, and as long as they're not ripping assets it's probably fine.
On the other hand, that's absolutely 100% cloning Pocket Sweeties for sure, no gray area at all, straight-up probably had PS open on a phone while making this, which is pretty scummy and weird. I mean it's one thing to share the same overall genre, since there's loads of these games, but this is a 1:1 clone, complete with random busty mascot, funny alt names for the characters, stuff to find during the sex to unlock more stuff, even the art style reminds me a bit of it.