 In the second episode, Naota tells Haruko that the reason his dad  acts so strange is because "He wrote an EVA book a while ago". (in  the English version, "He wrote a book on the deep mysteries of  EVA."). The show hes talking about is  _"Shin seiki evangelion" (1995)_ (qv), a hit series made by the same  animation studio with some of the same staff, and that line is a  tounge