Since ancient times, great rulers have never been born in the depths of the imperial palace or raised in the hands of women. Now, the Emperor sends his nine sons to nine different kingdoms, where they must conceal their identities and live under assumed names, each relying on his own destiny. They have until the age of thirty. Regardless of their identities or methods, whoever returns with wealth enough to topple a kingdom, extraordinary achievements, and unmatched wisdom shall inherit the imperial throne. The most outstanding shall be appointed Crown Prince. There are no rules and no limits. Like the Eight Immortals crossing the sea, each must display his own extraordinary abilities.