Toaru Majutsu no Virtual-On: Vooster’s Cup, The Day Before (とある魔術の
The story takes place prior to the start of the game's own story. It is the second story in the bundle featuring Touma, Index, and Ririn as the primary characters, the other one being the A Lovey-Dovey Date On the Eve of the Tournament!? bonus manga.
Touma and Index follow Furashina Ririn to a back-alley shop where she currently lives and asks the two of them to play tabletop games using Virtual-On figures with her. It ends with all three of them taking the roleplaying seriously and getting dirty, though actually having fun as Ririn's Vooster's Cup draws closer and closer.
- Unnamed Shop manager
- Events of this short story happen the day before the events of the Toaru Majutsu no Virtual-On, and as such occur concurrently with Toaru Majutsu no Virtual-On: Misaka Mikoto's Dangerous Tea Party.
- When choosing the Virtual-On figures, Ririn chooses the Cypher Virtuaroid, citing how it "feels right" foreshadowing her usage of it in the game.
- Touma acknowledges the events of the novel.
- The characters references roleplaying games like pen and paper RPGs and tabletop games. It also notes the differences between Western and Eastern preferences on video games, and is critical of developers trying to push for realism in their games.