Not married, in fact, he and Nuo Nuo can't get married in the end, or Caesar and Nuo Nuo are not even engaged yet. She and Caesar have not even held an engagement ceremony. Where can unmarried couples come from? It can only be said that Nuo Nuo was Caesar's betrothal and held an engagement ceremony. That's an unmarried couple, only engaged. Strictly speaking, not an unmarried couple!