No doubt the same taste from them!

Forgive me, I'm a bit confused. Is this the exact same game as https://www.anime-sharing.com/forum...い-dl-[993m]-1227978/?highlight=友莉と真凜は癒やしてあげたい but with different cover art? There's multiple titles up for download in this series that seem to have the same name, but the art being different is throwing me as I know a lot of Japanese stuff has dlc or extended editions.

I'm trying to make sure I at least get the 限定音声データ付き editions since they claim to be limited, and I'd like the data to be preserved. From what I've seen, it's an excellent trilogy of games, and losing additional voice content or dlc just kills me. I might even end up buying it myself if I could figure out how. Really a bummer that we overseas are locked out of a lot like physical items, presale events, etc.