As the sports festival comes down to the wire, Horikita must deal with Sudo, as well as Ryuen's threat.
The only thing I can't figure out is 
the source of your grudge against her.
الشيء الوحيد الذي لا أفهمه
هو مصدر حقدكِ عليها
Nur den Grund dafür, dass du
es so auf sie abgesehen hast,
Só não consigo entender mesmo