Hi. This is weird, I have comments turned off for this page but.. oh well, lol. I recommend using my Discord server for any questions as I check daily there, while I usually only come here to posted updates and releases. The Discord invite is on my creator page (Click the View all by Turning Tricks button in upper right).  To answer your question though, you get that scene where Lian and Mei do some photos with the MC by having Mei on the LOVE path and Lian on any path. There was a bug in Act 1, where you might not have locked Lian to a Love or Lust path, but as long as you have the lewd path turned on (shows either heart (Love) lips (Lust) or "Path not Set" (On lewd path but haven't locked in on Love or Lust yet) then that scene should show.  If you can't remember, you set Mei on Love way back when fixing her sink... if you sniffed her panties, that sets Lust, if you put them back, that sets Love. Hope that helps and join my Discord if you have any other questions.  BTW, I will be updating the Walkthrough after I drop Act 4.1 in a short while (I'm about to start testing on that soon).