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...
A teeny guy like him can have 
an earnest brawl with a guy like me!
فتى صغير مثله في إمكانه خوض مباراة 
!جادّة ضدّ شخصٍ مثلي
kann es dieser Knirps hier
ce que je trouve incroyable,
Até um moleque como ele pode ter uma
batalha limpa e justa contra um cara contra eu!
вот такие парни могут
по-серьёзному драться со мной,