Complex sentence: They arrive to discover Kaoru is "dead", though Aoshi soon solves the mystery and reveals that the body buried of Kaoru was actually a doll and defeats the puppet master, Gein, who created the doll in the first place.
Split into simpler sentences: They arrive to discover Kaoru is "dead", though Aoshi is quick to realize the circumstances surrounding her death are inconsistent. He soon solves the mystery and reveals that the body buried of Kaoru was actually a doll and defeats the puppet master, Gein, who created the doll in the first place.