Lu Xingchen is an eighteen-year-old perfect boy with a terminal illness. He has been told he has only three months to live.
Determined to tear off the label of "the perfect child everyone else's parents wish they had," he begins a rebellious journey of living as though each day were his last. But the moment he climbs a wall to skip school, he meets Ye Xiaomeng, an art student like a little ray of sunshine.
She is an unexpected burst of color in his pale countdown, and an unforeseen variable in his world of cold rules.
A "bucket list" records his longing for freedom. A little mirror becomes a starry bridge through which they share their thoughts late at night. And a groundbreaking diagnosis brings their two families tightly together.
Facing stubborn parents, school gossip, and the torment of illness, they save one another and become each other's light.
This is the story of a top student who acts like a slacker and an art student who is a "little ray of sunshine" colliding, a journey of breaking free from shackles and searching for one's true self.
Now that the measure of life has been redefined, can they join hands and create boundless hope in their limited time? Watch the stars in the glass case break free and, together with his little ray of sunshine, light the way forward for them both.