(Dun Dong) What If A4 Steve Went Back to the Past and It Was Just a Joke?

"There was once someone who told me that he would stay with me until the end, but he is gone now." Bucky said to Sam in despair. "You can look behind you, my friend." "Hey! Bucky! Surprise! It was just a joke!" Steve said. Bang! A blond man fell to the ground. Lightning protection! : The author is a writing novice. I watched Avengers 4 several years ago, but because the ending plot was too shocking, I didn't want to rewatch it. It's easy to forget some of the specific details and names, so please forgive me! ! ! Another character ooc apologizes! ! Some settings or characters follow the comics, for example, Steve's pocket watch is Bucky, not Peggy Carter. And the characters of Tony and Natasha This is a family reunion ending, so Tony is still alive. Intention: We will go all the way to the end, just you and me.