LogFAQs > #970339738

afaik so far the only valid topics that aren't provided in some way by the prompts have been stubs for people/things from Umineko that don't exist in Empire's verse like the one you mentioned (unless you count more meta ones like whoami), so yeah inputting based off outside knowledge should prob be smth you wait to do until you're out of other leads for the moment.
and from discussion I've seen elsewhere I think the image progression is based on how many unique entries you've found in total rather than being triggered by specific entries? though I'm not familiar enough with Ren'Py innards to be able to find the exact amounts for that in the code