http://wapchanssuskaph2zlit2wx6vs6u6rih7xnosg4cqt3uin7sl5cpf5yd.onion/cel/11.html
Outside of the gimmick of the three dimensions coming together, which gives us some demon and god girls, it plays the harem tropes really straight, it probably invented some of them, but it manages to land it all well enough and not feel tired. That's something I've noticed about trend setting shows, even if a ton of shows copy them later the originals still manage to feel fresh.