Lin Wan was once the last observer of the Interstellar Alliance. He wandered in the lonely universe for hundreds of years and witnessed the fall of countless civilizations. When her consciousness was about to disappear, she was accidentally reborn on Earth and returned to her seventeen-year-old high school days. With an old soul living in a young body, she became the loneliest stranger in this world of fireworks.
Facing the noisy campus, the stern head teacher, and her parents who had broken up due to rebellion, Lin Wan struggled to move forward in this "familiar and unfamiliar world." With the vicissitudes that spanned time and space, she carefully repaired the regrets of her past life: clumsily expressing love to her mother, promptly fulfilling her filial piety before her father became seriously ill, and seeking redemption from a transfer student who looked exactly like her deceased friend. The intrusion of the sunny boy Chen Yang was like a beam of light that illuminated her closed heart, allowing her to learn to laugh and cry again amidst the torn apart of "hundred years of loneliness" and "fireworks in the world".
However, return is a gift, but separation is fate. When his body gradually became transparent and when the call from the stars sounded again, Lin Wan concealed the truth about his disappearance and used his last life to build a safety dam for his loved ones.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.