Complex sentence: Watsuki said that he used "no specific model" and "no specific motif" in designing Kaoru, saying that if he had to name one model it would be Chiba Sanako of "Ryōma no Koibito".
Split into simpler sentences: Watsuki said that he used "no specific model" and "no specific motif" when designing Kaoru. He said that if he had to name one model, he would point to Chiba Sanako of "Ryōma no Koibito".