Devil Survivor 2: The Animation

Adaptation of the Nintendo DS game, part of the Shin Megami Tensei series. High school senior Hibiki Kuze and his best friend Daichi Shijima discover a website that will send videos of their friends' faces just before they die, only to receive videos of each other on the very spot where they're standing. When sudden disaster strikes, the same site that foretold doom allows them to summon the "demons" they need to survive, and the two friends along with classmate Io Nitta are thrown into an uneasy alliance with a secret organization fighting to stop the end of the world.

Synopsis from Anime News Network