Each story is independent. Some worlds have systems and some do not; skipping them will not affect your viewing:
World 1: Dream of Red Mansions
World 2: Ye Luoli
World Three: Laojiumen (Peng Sanbian)
World Four: A Mortal's Story of Immortality (Mo Caihuan)
Warm reminder: The stupid author's plot is also very weird. It is different from the original plot (film and television) and may be OOC.
