The mysterious challenger Katsuki defeats Megumi and challenges Danji to a match, but Danji has a condition: to defeat Yu-yu first. And that's how Yu-yu started his special training with Danji for the cardfight one week later...
Why?
لماذا؟
Warum?
¿Por qué?
¿Por qué?
Pourquoi ?
Por quê?
Почему?