Recently replayed this and have to say I find it more and more disappointing with every replay (Book Seven - AB1).
Story is a bit of a stretch, albeit quite creative and original to have a secret portal powered by sexual energy hidden somewhere (trying not to spoil too much here).
Rendering is okay'ish, to be honest; the animated tag in my humble opinion should be removed, single chained pictures have been created via rendering, yes, but they do not make an animation whatsoever. Or better only if the frames per second are beyond the visible almost thirty'ish fps.
The music is leaning quite heavily on creative commons from the 80s' side, but okay, one can switch it off if too much. Sound, if any, could be way better, to be honest.
The story is playable, yes, although there are not many really relevant choices (except for one game over choice early on I can recall from the top of my head). Plus the MC feels a bit like a 'fuck boy tool' for the - I will not say LIs since it is in essence only about having sex - 'sexual intercourse interests' in the game which basically push you in the right direction most of the time, if you chose incorrectly.
Plus this leaning on a single 'last man standing' of all the corporation leaders, basically a saviour figure, is quite unbelievable, sorry. This dude had to be the richest of all the richest in the world to be able to stand against all governments without them having him removed, if even possible at all.
Performance and animation I will put together here, the transitions and the views into the past or background are placed at really awkward places, which makes the perfomance a little 'choppy'. Animation is more or less not really existing, see also above, disregarding that the author had to render all the pictures which by the way get reused quite often as well.
I had a few bugs on my last replay, but then it was BookSeven-AB1, so bugs are possible. Reporting bugs here also seems a bit pointless, to be honest, since the author has not looked into the thread for quite some time it seems, but I can not be sure about that. Perhaps he is now solely focused on his Patreons and other supporters or decided to do this only in his spare time?
Voice acting is none-existing and to be honest, I rather do not want that at all.
The grammar and orthography at some points are making me at least cringe to some extent, I suppose the author is not a native English speaker.
The amount of content could be way better, like said before lots of pictures get reused plus some conversations feel rather pointless and superfluous and would not change the story at all if removed completely.
Honestly torn between one and two stars here, but first of all I want to be fair being not a supporter and second for an author's first VN it does not deserve so much slapping. So two it is.