Since 2009, the STEINS; GATE series has sold over 500,000 copies! Hypothetical Science ADV “STEINS; GATE” is a spin-off game and Hypothetical *Second-grade Syndrome x ADV “STEINS; GATE Hiyoku Renri no Darling” has finally been released for iOS! ※Compatible with iPhone4 or later, iPod touch 4G and iPad2,iPad mini or later. ※This game is only available in Japanese. ※This game has no plans to support a Korean version. ■ Sales copy This story may be real? This is the story of the Future Gadget Laboratory members.