Hi, update and game is great, but the character profiles all say "Finish the storyline, storyline under development" or something like that even though I am still progressing through the character stories and have more content instead of telling me what to actually do. Also, Lyx's cottage is just straight up not appearing as a conquerable location.
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I can't think of any Main Girl in Act Three whose personal story you progress, with the possible exception of Kana but you're not really progressing her story until and unless she wakes up. Some of the girls have events and content, but the HINTS section is for actual love level progression, not for side events.
If Lyx's cottage isn't showing up then you're running an unofficial version of the game or someone has been editing variables in your save file or you're not going to the cottage and summoning Jessica, which is what you have to do for all conquerable locations.
Older saves won't work unless the issue is that someone has been tampering with your save file. You're either running an out-of-date version (you can only conquer the Cottage in v0.21.3) in which case you should update, or you need to completely re-download the game from an official source and not install any translations, modifications or patches.