|Seiryu the Blue Dragon|
|First Appearance||Tenchu 2: Birth of the Stealth Assassins|
He was killed by Tatsumaru on the roof of Gohda Castle. After he died he was replaced by Tatsumaru. Tatsumaru fought a great duel against Lady Kagami, ending with both of them falling into the sea. Kagami woke up first when the two were washed ashore, but she did not kill Tatsumaru and instead saved him. Tatsumaru lost his memory of his former life and fell in love with Lady Kagami, convinced that he is Seiryu, and thus became one of the four lords of the Burning Dawn, replacing the real Blue Dragon.
Seiryu carried a kusarigama, which he used with great skill and speed.