Twilight Theater

The Gloaming House is an abandoned theater located about three kilometers away from Academy City.

Ursula Aquinas Rescue Arc
On September 8, three weeks after it closed down, Stiyl Magnus and Anieze Sanctis met with Kamijou Touma here when he was sent to Japan by Laura Stuart to retrieve The Book of the Law and Ursula Aquinas. Stiyl "kidnapped" Index while Touma was helping with the set up for Academy City's Daihaisai Festival and passed on a letter to him via Tsuchimikado Maika which told him to meet there if he wanted her back. The kidnapping and subsequent meeting at the theater was arranged to give a motive for Touma to leave Academy City and get involved in the Magic Side.

Later, the Amakusa Catholics attack Touma's group just outside the theater and recaptures Ursula Aquinas from them. Anieze and her group later uses the vicinity near the theater, for their preparations in attacking the Amakusa Catholics and recapture Ursula.