As Aoba is bitten by Ren, Ren's memories flow into him. Aoba feels Ren inside of him, and uses Scrap on himself... finding a very battered Ren. Ren then tells Aoba that he is a force that was created to stop Aoba if he ever got out of control, and...
The real Sei was raised in the laboratory.
سِيْ) الحقيقيّ تمّ إنشاؤه في المختبر)
Der echte Sei wurde in
einem Labor großgezogen.
El verdadero Sei fue 
criado en el laboratorio.
El verdadero Sei fue 
criado en el laboratorio.
Le véritable Sei a été élevé
en laboratoire.
O Sei de verdade foi criado no laboratório.