Very much looking forward to finding out what her Big Regret involving Shiori is, and what that "forgotten fight" was all about. The fact that Ren says he doesn't remember...feels like him hiding something, but that's more me not trusting those around our MC than anything else (because it'd be too easy, that way) - and the "big mystery" of this series seems to be the final moments of her life, and a forgotten confrontation between her and her best friend & crush.
I don't think I see this date of theirs resolving anything at this point, though. Plus...Ren seems remarkably "accepting" of her being a ghost.
And....he could see Kyouko. Feels very noteworthy, if you ask me.
Thanks for the TL.