Iweko II

Iweko Seiken was the first-born son of Empress Iweko I and her heir apparent. His father was the Imperial Consort Iweko Setai.

Upbringing
His younger brother, Iweko Shibatsu, was raised by the Spider Clan, which is why Seiken upbringing resulted in him being well-acquainted with various clans,, but he prefered the company of his father's kinsmen, the Lion Clan. He was also martially powerful, which was another reflex to the Spider Clan's raising his brother as a ward in the Colonies. These were precautions against him being overthrown, possibly by his brother. According to Moru, the Imperial Advisor, the Empress wanted to prevent that a corrupted scion would succeed her, which is why she didn't give the heir apparent to Daigotsu's clan, but her second child.

Spider Clan
Seiken disliked the Spider Clan and didn't consider them a true Great Clan.

Emerald Championship
Seiken took part in the Emerald Championship and during its final faced Utaku Ji-Yun, the eventual winner. He wounded the Battle Maiden slightly, but suffered a more serious wound to his shoulder from her. He recovered after several weeks, but from the duel he also kept a scar on his cheek, albeit one which did not disfigure his face.