(Nobuchi-sensei, I don’t have anything for him. So please refer to your nearest book store to get information about this guy :P)
There are many short stories of Toaru Majutsu no Index, Fate, Witch Craft Works and Oreimo on his pixiv so I’ll try to cover all of them slowly. Toaru Majutsu no Index related works are divided into two categories “Othinus” and the “Rest” so that they can be easily covered.
Toaru Majutsu no Index