“To be a star, you must shine your own light, follow your own path, and must not fear darkness, for that is when the stars shine brightest. “ 　　TszChun is a shy kid who is always on his own. Facing many hard times and difficulties in life, he has no one to share with but his toy astronaut. One day in school, there was a drama show about outer space exploration. In between fantasy and reality, TszChun embarks on an adventurous journey.

大學副教授艾蜜莉遭不明人士綁架，被丟進一個時間持續倒數的密室中，她的記憶喪失，更別說是被綁到這裡的原因。驚恐又充滿疑惑的她，在牆縫發現一個寫有日期的火柴盒，裡頭還夾了一支鑰匙，艾蜜莉意外地對這些東西感到熟悉，但上頭的日期究竟是什麼意思？鑰匙又是拿來開啟何物？艾蜜莉得把握時間趕快找回記憶才行。