Not even, it only reaches SoulCalibur II. Doesn't start, just goes right up to the edge. That's why Setsuka's a no-go, since it's implied her master was attacked by Mitsurugi after SoulCalibur II but before SoulCalibur III, so she wouldn't have any motivation, since she has nothing to do with the swords....because the content only reaches SCIII.
@Klimat The real proof, to me, will be if Cassandra and Amy get Soul Chronicle stories at all. If they don’t, then there’s no hope for anyone else. If they do, then the possibility exists that they might tell more origin stories. I bet they won’t, though. We’ll see.