Shinyaku Toaru Majutsu no Index: Birthday Through the Glass (新約 とある魔術のインデックス ガラスの向こうのバースデー?) is a short story written by Kamachi Kazuma that is featured in Dengeki Bunko Magazine Vol. 61 alongside other stories from famous Dengeki Bunko authors.
He was the strongest of his generation among the heretical Kihara researcher family and this is a story of him cracking down on the evil running rampant in Academy City.
By order of appearance:
- Kihara Kagun
- Kumokawa Maria
- Kihara Noukan
- Kihara Yuiitsu
- Kihara Byouri (referenced)
- Aleister Crowley (referenced)
- Despite being on the cover, Touma and Index are not in the story.