Ryu was born in the House of Hayabusa which is a branch of the Dragon Clan.

Once before, Ryu was engaged in a fierce batter with Jaquio over the statues

of the evil demon, and was able to come out the victor only after a very

difficult battle. Ryu is known as the "Ninja Dragon" and he is in possession

of the secret "Dragon Sword."

When he is not fighting evil, Ruy runs a shop with Japanese antiques, together with his girlfriend Irene.

(sources: Ninja Gaiden II: The Dark Sword of Chaos instruction manual; self)