Cao Cao tries every means to keep Guan Yu and prevent him from leaving. When Guan Yu does not succeed in meeting with Cao Cao or Zhang Liao, he decides to write a farewell-letter to leave behind, to hang up his seal of office and lock away his valuables. He intends to leave the ten singing-girls behind, and bring with him his two sisters-in-law.
曹操想方設法想留關羽不走。關羽見不到曹操和張遼，決定寫一封辭書留下來，挂印封金，留下十名歌女，保護二嫂動身。