Fuko and Andy successfully took on Rip and his friends from Under and were able to save the Negator Chikara from them. In order to fill the vacant 11th seat at the Round Table, the two try to convince him to join Union. Regardless of his decision, the Union soon faces a new challenge, because they have been betrayed - and from within their own ranks! To find out the reasons behind the betrayal and to be prepared for the future, Andy and Fuko set out in search of Anno Un, whose manga seems to capture the past, present, and future.