Saikawa meets Miki, Dr. Magata's sister, and realizes that Dr. Magata's unique mind has remained unchanged since childhood.  Meanwhile, Moe experiences virtual reality with the help of another member of the institute's staff, Shimada.  As she does, a mysterious voice forces her to confront her own past.
How did it get stained?
كيف تلطخ؟
Warum ist es schmutzig geworden?
Con qué se manchó.
Con qué se manchó.
Pourquoi l’était-elle ?
Perché si era sporcato?
Por que ele acabou ficando sujo?