>>2944471The other girls don't feel like copies for me and more like archetypes and oreimo happened to use the same ones.
Ruri and her clones seemed to be a bit less usual for me.
Oreimo 2 had more Ruri scenes but it was rushed.
I think they'll to the same with Eromanga Sensei, in case they make a second season.
Oh and funfact, until the last episode I thought that Sagiri draws porn and the name eromanga sensei isn't just a joke.
It feels like they only added it to confirm that they girls are "pure" and that you can make them your waifu.
Kagurazaka Ayame is the secret best girl.