Red Giras (レッドギラス, Reddo Girasu Red Giras ?) and Black Giras (ブラックギラス, Burakku Girasu Black Giras?) or "Giras Brothers" (ギラス兄弟, Girasu Kyōdai) (Also called the Gillas Brothers or Gilas Brothers) are two kaiju brothers who appeared in the TV series, Ultraman Leo. The Giras Brothers were under the control of the vile Alien Magma, and were used to destroy Planet L77, the home world of Ultraman Leo and Astra. Subtitles: Twin Monsters (双子怪獣, Futago Kaijū Twin Monsters?)