Were you able to figure out what sets the flag?
Oh, yeah, i scrolled further up before my post and hidden in some spoilers someone mentioned it being about doing Yumi's event 'Abyss' before Chika's onsen event chain. I'm not 100% sure but i think the flag is for if Yumi knows Sensei's dating Chika vs just knowing Chika's interested in Sensei, base on how a replay of abyss goes since no flags are set in replay's so yumi wouldn't be set to 'yumiknows', but again, it's been too long, i'm just guessing based on hazy memory and some rough indicators.
No activity on any thread since July, apparently.
Strange to have a LiL thread without him posting 600 quoted replies every 3 comments. Not exactly like i'm going to miss him, he was
too present in the thread, but the general conversation is noticeably less without him and that's a bummer.