Linked in the OP, or there's a different version if you just search this thread for "walkthrough".
I would say that you could get all the main-story & h-scene content by just playing, and maybe occasionally using the built-in "crystal ball" hint system. But there's loads of bonus stuff - kama sutra pages, pictures and the secret chamber - that might be difficult. Without the walkthrough, I never would have got it all.
48 main story scenes, 64 kama sutra scenes (briefer but hot) with the main characters, and 8 "secret chamber" bonus scenes (brief, hot and with other, pretty much unknown, characters). 120 total, which is tons.
Naaaah.., too complicated... much easier to get someone to search for you
