An agreement has been engraved in their hearts for thousands of years...
Looking for hope, looking for confidence, looking for love... In order to find the ultimate happiness, fate brings them together.
But what is true happiness for them?
Jilan's heart was numb. She had lost her best friend and closest sister. She didn't want to see her brother sad, so she had to suppress a smile.
But fate plays tricks on people, Firefly comes back... The pain and sadness of loss begin to awaken...