R.U.R.U.R. ~This child shall at least receive the stars~ (ル・ル・ル・ル このこのために、せめてきれいな星空を, ru ru ru ru kono ko no tameni, semete kireina hoshizora wo) is a Japanese H-game for computer, developed and published by light. The game is known for its use of established science fiction elements in its story, along with numerous references to several works of literature, including Antoine de Saint-Exupéry's The Little Prince and Karel Čapek's R.U.R.