"Chaos" is a trading card game that is very popular at Manami's school. Trying to learn more about it herself, she purchases a beginner's set, only to discover that it contains "Sahgan, The Mighty Sorcerer," the rarest card in the game. Now every other player is out to win the card from her. But Sahgan himself begins to visit Manami in her dreams, offering her advice on how to win.
| Published | 1999 to 2004 |
| Serialization | Bessatsu Hana to Yume |
| Last Updated | July 18, 2017 |
| Languages | English, Japanese |
| Other names | King of Cards, カードの王様 |
