Imagine waking up one day to discover that the world you are living in is not at all what it seemed? And maybe all your life has been a lie?
Joshua wakes up one day, he realized he had no memories of some part of the previous day, then he hears a name called Eva and memories came rushing back.
Coincidentally, everyone else around him, but one, had forgotten his best friend of several years.
Then he discovers that he is being hunted by a sinister figure known as "Madame" who intends on capturing him and anyone else that still has the memories of Eva.
He figures discovers new things about his world, new abilities, and with the help of his new found friend(s?), he go on an adventure to rescue his best friend (*if she is a possible love interest, that's even better than best friend) battling numerous threats thrown in their way.