But Jimmy doesn't quite understand why Yvette, who suffers from cardiac disease, is so full of ambition and warmth for living.

Under the blue skies, they gather with their classmates from the same school, another gifted and talented student named Wendy (Hannah Lin) and the Japanese exchange student Akira (Dean Fujioka) who loves soccer but is always the last in academic, and together at this secret base they relax, have fun, and fool around.

The destiny which has brought the four of them together serves as a powerful force of empathy and encouragement, as they enjoy fun times together, and try to save an embittered suicidal father.

Against the backdrop of clear skies, reflecting the visions and secrets lodged in the hearts of four almost grown up children, whether life is normal or exciting, with success or failure, they are always able to enjoy the experience.

This demonstrates the ability to make oneself feel joy in living, which is a great gift from above, just like a tail, which you can wag just for fun, when you have time to spare from trying to do something.