Sora (空そら, Sora) is the main male protagonist of the No Game No Life series and the cunning and manipulative half of the siblings.

Abandoned by his parents, Sora is a brilliant NEET (Not in Education, Employment, or Training) hikikomori (shut-in) gamer along with his step-sister, Shiro, with whom he forms 『　　』 or Blank with. Having gone through a rough childhood, he has a lackadaisical hate towards life and pretty much dedicates himself only to gaming. One day, both him and his sister is called into an alternate world after they defeat Tet in an online chess game. Sora's biological father (no relation to Shiro) married Shiro's biological mother (no relation to Sora), thus, making Shiro and Sora step-siblings.