There Was a Tsundere Older Brother, So I Could Only Play Dumb

"New York will be invaded by aliens tomorrow?"

Carl froze.

She had actually watched The Avengers 1, but that had been a full thirty years ago. She had forgotten almost all of the plot and details.

"That's right." Arthur puffed out his chest and spoke with a proud expression:

"A few months ago, I had my dad bring back the complete set of original film reels and sample footage from Marvel Studios. They even had the unedited versions. Then I watched them continuously for two weeks to catch up on my Marvel knowledge.

"If nothing unexpected happens, Loki will use the Tesseract at noon tomorrow to open a portal atop Stark Tower, allowing the Chitauri army to invade Earth.

"This is the first battle in the film world where the Avengers fight together and successfully defend Earth. However... it's also a battle with some—no, an extremely high number of civilian casualties."

At this point, Arthur actually showed a hint of gloom as he continued speaking to Carl:

"Sister Carl, before I fought alongside you to wipe out the remnants of the Star Alliance, I might not have cared about civilian casualties in movies. I didn't even particularly like the Sokovia Accords in Avengers 3.

"But after fighting alongside you, I realized that the companies controlled by my big brother and dad truly operated with human safety as their priority.

"If the Sokovia Accords were signed, Super Heroes would become tools of the government. Considering that Earth's governments haven't even unified yet...

"Heh."

"But if the Sokovia Accords weren't signed, Super Heroes would continue acting according to their own preferences, causing massive civilian casualties.

"So there has to be a firm and selfless command hierarchy capable of making all Super Heroes act together and preventing unnecessary casualties."

"Arthur... Little Brother?" Carl