This book is a group portrait of women, including more than a hundred female characters.
Fenghua's undergraduate thesis requires traveling to four planets - Earth Hui Star, Fire Forging Star, Water Catching Star, and Jupiter Cloud Star to help "them" on the planet solve their problems.
The living environment of women on the four planets is different. Some planets are more advanced than her home planet (Jin Zhuo Star), while others are much behind.
However, she and her partners, in various complex systems, used wisdom, knowledge, optimism, and courage time and time again to achieve goals beyond the graduation thesis itself.
At the same time, they also discovered the "overlooked" secrets of each planet.
