The Twin Tails Girl is a recurring background character in the Toaru Kagaku no Railgun manga. She always appears with the Judgment Boy and acts as an easter egg in the series. She has appeared in 3 chapters of the manga.
The Twin Tails Girl is a short girl with long hair tied into twin tails.
Toaru Kagaku no Railgun
Level Upper Arc
- Main article: Level Upper Arc
During the Graviton bombings, the Twin Tails Girl fell and hurt her leg within a shop which Judgment was searching for a potential bomb. The Judgment Boy heard her fall and ran over to assist her as a nearby stuffed rabbit which had been infused with gravitons started to explode. She made it through the explosion unscathed as the Judgment Boy jumped in front of her and was seen with a large injury on his back.
- Main article: Sisters Arc
Daihasei Festival Arc
- Main article: Daihasei Festival Arc (Railgun)
While Misaka Mikoto and Kamijou Touma were dancing around a bonfire, the Twin Tails Girl and Judgment Boy were seen dancing together behind them. In the anime, this is the second time they appeared.
Dream Ranker Arc
- Main article: Dream Ranker Arc