Chen Ke, the administrator of the Municipal Archives, was sorting through a batch of old archives from the Republic of China when he discovered a mysterious file marked "Ghost Marriage·Archival". The moment he opened the file, he was pulled into a strange space called "World" - a red sedan to welcome the bride, seven rules, paper servants, and a dark marriage. This is not a game, not a dream, but a strange talk about real rules. When Chen Ke discovered that he was actually the one written into the rules, he began to understand: he was not the chosen one, he was a rule himself.