Mokuba

Mokuba is Kaiba's younger brother. He gets kidnapped almost every week, to the point where it doesn't really bother him anymore and he just eats snacks and watches TV while waiting for Kaiba to rescue him.

Silly's Zexal

 * 18. The Date

Silly's Yu-Gi-Oh!

 * 1. Downsize Duel in Domino!
 * 2. Tricky Treat

Trivia

 * The Date is Mokuba's only appearance where he doesn't get kidnapped.