In 2014, Godzilla landed in New York, and a terrifying battle between it and the Titans razed San Francisco, triggering a series of disasters. Although Kate Landa, a teacher, survived the disaster, a car full of children andThe death of the driver made her very scared; two days later, her father Randa Dazhi briefly met her once and left in a hurry, then disappeared, leaving Kate confused and frightened who didn't know the truth.

In 2015, Kate thought her father was dead, so she was persuaded by her mother to go to Tokyo to handle the funeral arrangements, but unexpectedly discovered that her father had a family in Tokyo. Later, Kate accidentally discovered some documents, and was once again frightened by a shocking secret..Faced with a huge threat, she and her half-brother and others embarked on a global adventure to learn everything about her father and the truth about the mysterious organization called “Emperor”.