Since childhood, Jin Yu has heard that there is a gem called "Ye Ning" deep in the galaxy. It is said that it can reflect the unfinished future of all things, but it can never reflect its own destiny. As a descendant of the Guardian, his mission should be to watch silently until the star falls and the light disappears. However, when the night condensation suddenly cracks with a glimmer of light, Jin Yu is involved in a drift between dream and reality - every night, the gem reflects the fate of a stranger, guiding him to travel through the fragments of floating light and repair those forgotten wishes. The boundary between reality and the stars gradually blurs, and Jin Yu begins to question: Is guardianship a way to help others achieve their future, or is it a way back to losing oneself?
On a starry night, he embarks on a journey to pursue the truth about Ye Ning, and every step of the way reveals the cracks and light in people's hearts. Guarding is no longer a static watch, but an active choice and letting go. In the light of destiny, can he find his own answer, or will he become the brightest and loneliest light in the galaxy?
