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...
Grin while you still can, kid.
.ابتسم ما دام في مقدورك ذلك أيّها الفتى
Das blöde Grinsen
wird dir noch vergehen.
Aquí termina tu sonrisa.
Te voy a borrar esa sonrisa de la cara.
Rigole tant que tu peux, petit.
Sorria enquanto pode, moleque.
Улыбайся, пока можешь, малец.