In a world where humans can no longer live on the Earth's surface, everyone has evacuated to various locations. Daisy, a young girl still in a research base, must collaborate with her robot assistant, Mike, to replace the power cells so she can survive until help arrives.      

We play the role of Daisy, a poor young girl who joined a program in exchange for a large sum of money. After agreeing and undergoing the tests, she was supposed to sleep for only 5 years, but due to an error, she ended up sleeping for 15 years. Mike, the robot assistant, was left in the abandoned research center.

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