Complex sentence: The character of Yu Kanda was carried over from an unpublished work created by Katsura Hoshino, who designed Kanda to introduce a change into "D.Gray-man" s Western setting.
Split into simpler sentences: The character of Yu Kanda was carried over from one unpublished title created by Katsura Hoshino. Hoshino designed Kanda to introduce a change to "D.Gray-man" s Western setting.