Hey, to finish this story I offer you this short scene.

Post Credits Scene

As they had promised five years ago, Flash and Supergirl were quietly discussing their lives around a Big Belly Burgers. They had even invited several Avengers including Professor Hulk, Sam Wilson, Bucky Barnes and Ant-Man, and also Wong.

They find out the joys of eating food from another Earth in a part of the Avengers compound that was still under repair.

"A good Big Belly Burgers!" exclaimed Supergirl savoring her meal. "It had been a long time since I had eaten it."

"This food is called like that?" Sam wondered.

"It's really tasty," said Professor Hulk. "I should ask my restaurant for the recipe of your… Big Belly Burgers."

"That's what I love most about my Earth," Flash said.

"I have never eaten anything so delicious!" exclaimed Wong.

"Delicious? It's an understatement," added Ant-Man, excited. "This burgers is really good. And even more. Maybe I should be traveling in the Multivers."

"One Earth is enough for me," Bucky explained.

"It's great we've met you and Barry," Bruce explained with a smile."We will miss you."

"Don't worry, guys," Flash reassured them with a smile. "My friend Cisco has provided you with devices that will allow you to come to us."

"If ever other extraterrestrial threats could return to your world, we'll always be there to help you," added Supergirl.

"Thank you, that reassures me," answered Scott taking a new bite of his meal.

"Thanks for the Big Belly Burgers," Wong said while eating.

"Yes, thank you very much," said Sam, smiling.

"For us too, it's been great to have met you guys," Supergirl said, smiling sadly.

"I'm sure we'll meet again," Flash said quickly.

"And I hope it will not be for a new crisis," replied the Kryptonian with a grimace.

Further away from them, a strange individual watched them in silence, with a huge book in their arms. It was Mar Novu alias the Monitor. Totally neutral, he watched the band of heroes, and finally disappeared through a portal.

END

And There you go! Thus ends this story crossover mixing the story of Endgame with our heroes of Arrowverse. I really wanted to realize this story. I'm glad I did it!

As soon as I saw Avengers Endgame for the first time in preview, I immediately had my story with Kara and Oliver in mind!

I hope you liked it!

If you have suggestions for crossover stories with Supergirl or Arrow or Flash with Avengers, I'll take it!

See you soon for a new story!