Content: The final identity of the protagonist (Sword God, God of Death, Demon God, Lord of the World), and the state he has reached (invincible in the world of comics).
Function: It gives clear expectations for the ending of "Invincible Flow" and directly tells readers that this is a story in which the protagonist cheats all the way and finally reaches the top. It dispels worries about the plot being depressing or frustrating, and is the ultimate guarantee of "splendid writing".