Batman Prequel 3 The Rise of the Dark Knight Did the protagonist finally die?

No, at the end of the film, when Afu returned to Florence, where he went on vacation every year, he accidentally saw Bruce sitting in the restaurant opposite him and found that he and Serena became lovers and sat together.

Extended data:

In the climax of the film, Batman finally decides to give his life for justice. After revealing his true identity to Gordon, he flew a fighter plane to bring a nuclear bomb to the sea level and detonated it. Batman was found dead because the fighter's autopilot system was damaged.

Gotham successfully recovered the situation, the remaining mercenaries and criminals were arrested, and the city erected a statue for Batman as a memorial. Bruce Wayne was found dead in this disaster; After his will was published, Wayne Manor was converted into an orphanage, and all the rest of the property belonged to Ah Fu. When Fox was sorting out the fighter information, he accidentally found that the autopilot system was actually repaired by Bruce himself. When Gordon returned to the top floor of the police station, he found that the bat signal he had destroyed had also been repaired.

When Ah Fu returned to Florence, where he went on vacation every year, he happened to see Bruce sitting opposite him in the restaurant and found that he and Serena became lovers and sat together. After Blake resigned as a policeman, he got the package explained by Bruce's will under his real name "Robin". When he arrived at the designated place, he found that he inherited the bat cave.