Complex sentence: Marica's sister that thinks of Marica, the hero, Jale and Liu as her children, and always worries about them and tells them that she will wash their wounds with salt water if they misbehave.
Split into simpler sentences: Marica's sister that thinks of the hero, Marica, Jale and Liu as her children. She always worries about them and tells them that she will wash their wounds with salt water if they misbehave.