Time flies, three months have passed in the blink of an eye! This group of friends held a meeting at Tony's lair—Stark International Tower. Attendees include Iron Man, Hulk, Thor, and Black Panther.,Chapter 2: The Mysterious Ancient Sword and the Dragon's Heart Flame,Pointing to the massive cave before them, Daniel said, "Walk to the end of this cave, and you will face your greatest opponent in life. Defeat him, claim your inheritance, and you will have passed this trial!"。