Despite being warned of this by Mitsui, Mariko refused to give up fighting to prove the innocence of her real father, Masahiko Takagi. Mariko was then struck by symptoms that could be considered a prelude to personality disintegration. She was overwhelmed by intense fear. Amidst all this, Mariko heard the voice of Koichiro Maeda, the father of her classmate Miyako Maeda.