I bought the game on that Chinese website and compared it to the version here and it's almost the same, with only slight differences and 2 new mobs.
“Chinese website”? What? It’s japanese… did you get scammed?
Sorry, I'm bad at differentiating between Japanese and Chinese, so it doesn't matter to me. Anyway, I bought it on this page, that's what I meant: Dlsite
What the 2 new mobs exactly? I completed the game and unlock gallery, but first time heard about 2 new mobs. Can you tell me?