How can I get to the Harem ending in Analogue: A Hate story without cheating?

Although it is possible to get to the Harem ending via cheating, I would like to know if it is possible without manually entering the relevant document codes (using knowledge from a previous play through).

I have tried following the advice of Zachary Paul Clement who suggests that it is possible to unlock those entries in time, but every time I try I can't complete the relevant interactions before

the reactor meltdown occurs.

So, are there any reliable steps I can take to get to the Harem ending by legitimately unlocking the required entries, or is it really impossible, as the "2 Girls, 1 Core" Steam achievement descriptions suggests?

^{If it makes any difference, I am playing the Steam version of A:AHS. It would be good to say if any solution requires a specific version of the game.}

2 Answers

Below we have someone who is personal friends with the developer, explicitly stating that you have to use information from a previous playthrough.

In Analogue: A Hate Story, there's no way to romance both of the available characters at once...unless you play through the game multiple times and use information you learn on earlier runs to break the fourth wall in a new run. Doing so nets you the 2 Girls, 1 Core achievement, which about 24% of all players have attained.

Quote from

I actually found something that might be of use to you; while in the meltdown process, just do what you should to switch to pss and make the reactor ready for shut down, but down shut it down yet, instead return to the AI interface. Mute will tell you a few things then ask you if you have something to show her or something like that (I don't remember what exactly the options were but you'll undertand what I mean when you get there) just pick the options that would make her copy Hyun-ae to her own core, yes, you can make *Mute copy Hyun-ae to her own core while you are facaing the meltdown danger. I tried to make her somehow show me all of Pale Bride's diaries but couldn't manage to do that.

Hope you can find a way to do what I couldn't because I really want to finish the game with ending 5 WITHOUT cheating and I think there is actually a hidden trigger that would let you get it without cheating, since I played VNs with hidden routes which are supposed to be found by extreme VN players, but I am not one so I couldn't find those, not this time either.

(And I am playing steam version too)