Its a Cross over series. Lingyin went outside to take a flight with her IS, But she was sucked in a Portal and landed in Rikka/Asterisk, where she met Amagiri Ayato and Julis and told them that she is from the IS Academy. Ayato and Julis were shocked that she was caught in the News. Lingyin got the Sword " Dark Veresta ". She´s unable to control it because it was a Katana. She will start her Adventure. The Opening Theme " Brand New World " will be sung by Nishizawa Shiena. The Ending Theme " History " will be sung by marina.