He was once an ace of the air force soaring in the sky, but due to an accident he suffered from "fear of flying" and was permanently grounded, becoming a marginal assistant of the national parachuting team. She is a skydiving girl with extraordinary talent, but she is trapped in her own world due to autism. The sky is her only language. When the broken-winged eagle meets the lonely skylark, a miracle involving redemption and rebirth unfolds at an altitude of 10,000 meters. He became her only link to the ground, and she became his final beacon to return to the blue sky. This time, they want to jump for each other and for the national anthem to be heard on top of the world.