Chaos,Hero is an anime series that the Yuusha de Aru series will have a crossover with the Chaos;Head series with 12 episodes. The characters from Washio Sumi wa Yuusha de Aru, Nogi Wakaba wa Yuusha de Aru and Hanayui no Kirameki will appear too. It focuses on Yuki Yuna who heard the news about the New Generation Incedent in Shibuya. But when she received a message and picture from the Shibuya News, Yuna was schocked to discover a girl and corpse. the girl was revealed as Sakihata Rimi, who was covered in blood. After seeing the picture she began to have delusions and having her terminal back from the Taisha. She became shocked again after New Generation Case has occured in Shikoku too. Now she has to find out what caused the New Generation Case.... The Opening Theme "Fethisim Ark" from Chaos;Head NoaH will be sung by Ito Kanako. The Ending Theme "Goodbye,Chaos" will be sung by Ayane.