Chen Yuan is one of the 50 million people around the world trapped in the strange fate of "walking between two worlds". When they return to the Blue Star due to severe pain, the time of the trapped star will stop for them.
The clocks of the two worlds are disordered because of them. When the "thigh" of his master and father begins to weigh his value, Chen Yuan must measure his way out in the cracks of time and uncover the truth of his life experience - that may be the key to saving the two worlds, or it may be the beginning of tearing them apart completely.
