Disclaimer: I do not own My Hero Academia, or any of its associated characters and lore. That right belongs to Kohei Horikoshi.
[IL]
Izuku's League
[IL]
At the bar owned by the League of Villains, Izuku Midoriya was lounging with Himiko Toga in preparation to receive the important broadcast from the League's Master on the television. It had been a busy few months since the League worked alongside Stain to kidnap an entire class of U.A. High School students and started to attack Pro-Heroes while inducting new League members from both the former Class 1-A and elsewhere, and now, All For One and Tomura Shigaraki were about to broadcast their success rate for the whole world to hear.
As the countdown was approaching, Himiko snuggled closer to Izuku much to his blushing embarrassment, still not used to her forwardness. "Should be a good show, right, Izuku?" Himiko commented to him with a flushed expression.
"Uh, yeah, I've been looking forward to this moment all week." Izuku replied earnestly after pushing past his shyness around women. Of course, it soon returned when Himiko began to kiss him on the cheek and neck suggestively. Luckily, when Izuku noticed the TV acting up. "Himiko, it's starting!"
For the next ten minutes, Izuku and numerous other active and prospective Villains all over the world listened to All For One detailing the League's growing strength and infamy as well as the incoming fall of Hero Society followed by the rise of a new world order where the Quirked individuals would no longer be hampered by the inept laws and flawed ideals espoused by All Might. That last bit brought a wide, knowing smile on Izuku's face when All For One stated that All Might was already powerless.
[IL]
I honestly didn't have much of an idea for a My Hero Academia one-shot when I set up a poll on FanFictionNet, but after thinking of the ideas of Izuku having a composite Quirk from his parents or studying to become a member of the Police Force, I eventually decided to depict him as a Villain in the style JokuSSJ depicted in his what if summaries on DeviantArt about him either training under Stain or joining the League of Villains proper. I don't know if that theory about Izuku's unseen father being All For One is what we'll see in the anime/manga, especially since the Superman/Izuku fusion story on FanFictionNet got me to like the idea of Hisashi Midoriya being a secret Pro-Hero, even if we haven't seen evidence of either yet, but I guess we're just going to have to wait for Horikoshi to get on that.
I know it's shorter than what I would've wanted, but I hope I got the point across still. I might actually write a longer story in the future, so you never know.