Kamen Rider Ryuki Episode 7 A New Species Is Born? ( Air Date 2002-03-17 ) Genre Action & Adventure, Sci-Fi & Fantasy, Drama category. Overview "Yui is pursued into finding a man by her visiting grandmother, while Shinji encounters a lawyer who brings forth trouble around every corner. In the meantime, Reiko meets an old man who claims he owns some of the mutated species he found near a river bank.".