<Here’s the short story that was included in the Bakuen Manga. Thanks to Shaoqi for bringing it to my attention and doing the initial translation.
Vol12 Chapter 3 should be up by Friday.>
Intermediary TL: Random passerby C (路过的路人C)
TL: Shaoqi, CannonGerbil
Underneath that hood of hers, the big breasted onee-san seemed to twitch.
“Wha…What did you say?”
“I said, please teach me that spell.”
I repeated myself to that onee-san.
The onee-san made a face more troubled than when I said I wished to conquer the world.
More troubled than when I asked for a way to grow my chest.
And even more so than when I asked her to make me into the Demon King.