Unaired episode included in the first Blu-ray volume.

In a post-apocalyptic world overrun with mutated beasts called Limbeekoon or Filth Monsters, humanity is forced to live in large mobile cities called Regios and learn to use special weapons called Dite, by harnessing the power of Kei to defend themselves. In the Academy City of Zuellni, Layfon Alseif is hoping to start a new life and forget his past. However, his past has caught the attention of Karian Loss, the manipulative Student Council President and Nina Antalk, a Military Arts student and Captain of the 17th Military Arts Platoon, who instantly recognizes his abilities and decides he’s the perfect candidate to join her group. However, with a secret past that won’t leave him alone and unknown powers beyond normal, Layfon just might not take it.

It has been one year since Tsukune Aono enrolled at Youkai Academy, and since then his life has taken an interesting turn. In addition to being the only human at a school for monsters, he has attracted a bevy of beautiful women who want him all for themselves: the sexy succubus Kurumu Kurono; Yukari Sendou, a witch; stalker and yuki-onna Mizore Shirayuki; and Moka Akashiya, a kind vampire who, when her rosary is removed, reveals a darker personality. But soon, trouble visits Youkai Academy in the form of Moka's younger sister, Kokoa Shuzen. She is furious that her "true older sister" is sealed within Moka's rosary, and vows to bring out Moka's darker self. However, Kokoa's thoughtless actions may affect more than just her sister... [Written by MAL Rewrite]

Second season of 3D Kanojo: Real Girl.