@Bloo Guide for this game
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You can get guides for this and Vitamin Plus on the author's site under Downloads > Guides:
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Word of warning: make sure you get the bandages for the horse
before you heal it to 80%, or else you'll never have a chance to get them from Seiichi. The guide doesn't tell you about the bandages until after 80%, and I had to replay to get the horse to 100%.
The actual deadline for getting the bandages is up until you decide to spend time with Reiko Sunday afternoon. Seiichi leaves the barn once you've left with her, and his appearance inside the house lacks the conditional branches that check for and give you the item when you need it. This appears to be the only real mistake in the guide's sequence.
Vitamine plus? where to get that game???
Aside from the dev's website (which is in dire need of a new SSL certificate) linked in response to your post, the game's currently got two threads on the forums: one for Vitamin Plus
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and one for its remake, Slice of Venture: Origins,
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. That last thread is presently hosting even more mirrors of Vitamin Plus v1.7, though ideally it should host its remake come August, according to the dev.
is this game has really this tags anal sex, loli, Defloration and ganbang? (not nessesarly in that order) then I must suck in playing it because i haven't seen it
Deflowering is definitely not in this particular title, but considering Momoko and Yuki's ages from the first game and the fact that purportedly only a few months have passed, loli should still apply. For gangbang, I guess you could consider a couple of scenes with multiple dogs to qualify for that? But otherwise, no. There's loads of anilingus, but I'm not sure that's enough to qualify for the anal sex tag. Tag a mod and ask them.