There's a "Complete Spoilers.txt" that should be bundled with the mod if you want all the details, but to state some here: (Non-morning day 1 methods)
- Interacting where the Martyr Effigy is/was with Marina in your party.
- Walk to the spot where the chandelier can be cut down in the church with Marina in your party.
- Defeating the doppleganger with Marina in your party (though this has two bugs at the moment like you noticed).
- Defeat or Recruit Karin. Marina has to be present for you to get a point.
- Interact with the corpse at the top of the department store where you get the Leechmonger Ring—with Marina, of course. (Doesn't matter if you've already picked the ring up.)
I've tested the Day 1 methods the most, so those methods should have the least amount of bugs. Like I said, there are text files that lay it all out depending on how much spoilers you want for the mod. Again, thanks for the support!