Lachesis' "sister", Clotho destroyed the world. We are lacking details on how since there aren't many imPorts left from that time. But those imPorts, back in that universe, decided to save Lachesis from Clotho's cage and by saving her, Lachesis granted them salvation as well, by bringing them here before the world was destroyed completely.

[ it's a huge mess ]

... We don't actually know if Clotho came along. She hasn't made herself known so far, unlike Lachesis.