Disclaimer: I do not own Shingeki no Kyojin or anything else.
Day 7: Armin
Armin was generally known for being a genius. Whenever one of his squadmates had a question about pretty much anything, Armin was the person they turned to for an answer. However, despite this common knowledge, everyone was caught a bit off guard when Armin began telling people random Christmas trivia. However, it soon turned into a challenge - everyone wanted to come up with some trivia Armin did not know the answer to. For a couple hours, Sasha, Connie and Jean took turns asking Armin questions, with the blonde answering every one with no difficulty whatsoever. Eventually, Eren and Mikasa joined in as well, to no avail. Exhausted of Christmas trivia, the five eventually gave up.
Later that day, Isabel found the blonde and tried asking him a few trivia questions after hearing about the challenge. Again, Armin answered quickly and accurately. After Isabel ran out of trivia, she found Farlan and told him to try. Petra, Commander Erwin, Hanji, and Moblit all tried asking him the most little known trivia they could think of. Though a few times Armin had to think for a moment before replying when a particularly difficult question was asked, he still managed to answer all of their trivia.
That evening during dinner, the challenge continued as Armin's squadmates attempted to stump him. Finally, everyone agreed they would not be able to come up with a question Armin could not answer.
"That's pretty impressive, Armin," Sasha said. "Where'd you learn all that trivia, anyway?"
Armin shrugged. "I've just heard it all throughout my life and happened to remember it."
"Do you have a photographic memory or something?" Connie wondered.
Armin shrugged again.
"Probably," Reiner spoke up. "How else would he be able to remember all of that? I certaintly wouldn't be able to."
Armin inwardly smirked. What his squadmates didn't know was that he had actually found a book of trivia in a box full of books in a supply closet the other day.