
Originally Posted by
Ryllharu
It's not too complicated if you've seen up through Higurashi Rei (the OVA series) to hear all of the terms used, but explaning it would contain severe spoilers for Higurashi, effectively ruining the mysteries of that series.
You'd end up knowing the true identity of the killer in Higurashi (midway through Kai, aka season 2), what role Rika really plays (beginning of the second arc in season 2), the details of the final arc of Higurashi Kai (season 2), and the final scene of Kai and the last serious episode of Higurashi Rei (eps 4).
I'm obviously reluctant to explain it here, but if you really want to know, send me a PM.