My Mansion of Gorgeous Maids in Another World - Chapter 10: Cerven

A series of short stories in the world of Toaru Majutsu no Index organized into chapters featuring Kanzaki Kaori as the protagonist, going around the world and space doing missions for the Church of Necessary Evil, however, there is more than meets the eye as each incident is connected.

One chapter was bundled with each limited edition release of the Toaru Kagaku no Railgun anime DVD and BDs, with all of them together being equivalent to a single normal Toaru Majutsu no Index volume

A madman's journey up the towers.These are the ironclad rules of the Three Towers Game in the eyes of others:1: Do not create killings in the Tower of Desire. The Tower of Desire is a tower full of love; please climb it with love.2: Killing is the only pass for the Slaughter Tower. All creatures in the Slaughter Tower are enemies of humanity; do not try to communicate with the monsters.3: Stay away from the Deceit Tower, and happiness will be abundant.These are the ironclad rules of the Three Towers Game in the eyes of Wen Xishu:1: The Tower of Desire is full of sheep that won't kill.2: The monsters in the Slaughter Tower are powerful and reliable, truly a camp of righteous fathers.3: I absolutely love the Deceit Tower.

Four years after the Third Nightmare, something unexpected happens. A group of people find themselves in a strange theatre, which tells them to react to someone's story...?