The battle with Kai reveals secrets that the Nagatsukis would rather leave unknown.
How was I supposed to know 
she was that damn weak?
وما أدراني بأنّها كانت ضعيفة إلى هذا الحدّ؟
Ich war total überrascht,
wie schwach sie war!
J’ai été choqué par sa faiblesse !
È stato un vero shock scoprire che è così debole!
Como eu devia saber
que ela era tão fraca?
Я аж диву дался, какая она хилая!