יוגי מוטו תלמיד תיכון, קיבל מסבא שלו פאזל שמקורו במצרים העתיקה, אחרי ששיחק עם הפאזל נכנסה לגופו נשמה נוספת שמאפשר לו להפוך ליאמי יוגי גרסה נועזת חסרת מעצורים שמסוגלת לעמוד בדו קרב מול כל המפלצות במשחק הדו קרב. האם יוגי יציל את היקום? הסדרה שודרה בארץ החל משנת 2003 (בארה"ב שודרה שנה לפני, ב-2002).

The anime centers around a boy named Kouta Kouka (Kouka Kouta in Japanese name order, an apparent wordplay on Coca-Cola). Kouta strives to be the world's best Bottle King at the Bottle Battles in the virtual Drink World. He comes across his Bottleman partner Colamaru and then wages battles with various rivals.

It's the ultimate showdown of wits, brains, strategy, and alliances for a chance to win 500 million won.

Nao Kanzaki, a student, was blackmailed into joining a "Liar Game" and ended up losing 100 million yen. In order to repay the debt, she enlists the help of Shin'ichi Akiyama, a genius swindler who was only recently released from jail for bankrupting one of Japan's largest scam companies.

In Big Money City, players participate in "Hero Battles" using Bankfon Gs, which allows them to rent powerful hero suits and fight battles against other players, receiving power boosts from the system's public domain feature. Kaito Goushou, a young elementary school student who is always eager to help others, ends up hastily signing a contract to rent the powerful unlisted hero suit, "Enter the Gold," from a mysteriously seedy priest named Sennen; however, he soon learns that the suit comes with a debt of 10 billion yen, and Kaito must now clear his dues by winning Hero Battles.