Complex sentence: Soon after a chance encounter at Yasaka shrine, Chieko learns of a twin sister Naeko who had remained with her natural parents in Kitayama working in the forest in a mountain village north of the city.
Split into simpler sentences: Soon after a chance encounter at Yasaka shrine, Chieko learns of a twin sister Naeko who had remained with her natural parents. Naeko lives in Kitayama working in the forest in a mountain village north of the city.