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Ryu Hayabusa was created in 1988.
Ryu Hayabusa loves neither Ayane nor Kasumi. He's married to Irene Lew ((canon)).
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Ryu Hayabusa
Nobody in Naruto is called Ryuu. But the main characters name in Ninja Gaiden is Ryu Hayabusa, and in Death Note there is a death god namned Ryu.