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Kasumi Ninja was created in 1994.
Kasumi Ninja happened in 1994.
No.
He protects her because of his friend and Kasumi's brother Hayate/Ein.
But Kasumi, i think, likes him. But he doesn't return her feelings,
so nope, Ryu isn't in love with Kasumi
Kasumi is a Kunoichi from Dead or Alive Series
Kasumi Nakane was born on April 3, 1982.