Tazuna and Koyori are facing off against Koyori's sister and the doc's old partner.  Koyori's sister has been reduced to an emotionless mute after years of difficult treatments and abuse. Can the two of them bear to hurt someone so close to Koyori? And even if so, can they win against Handshakers who are so much more powerful and determined?
There was no need to make 
Koyori fight her sister.
لم يكن هنالك أي حاجة لجعل كويوري تقاتل أختها
Es war nicht nötig, Koyori gegen
ihre Schwester kämpfen zu lassen.
No tenía por qué hacer
que las hermanas pelearan entre sí.
No tenía por qué hacer
que las hermanas pelearan entre sí.
Pourquoi contraindre Koyori
et Mayumi à s’affronter ?
Non c'era bisogno
Não precisava fazer a Koyori
 lutar contra a irmã dela.