Mija is a farmer's granddaughter who spends her childhood with a fascinating creature called Okja. Mija and Okja are best friends and Mija feels betrayed when Mirando Corporation kidnaps her best friend. Mija is determined to find Okja and chases after her all the way to New York. On the way, she meets a bunch of animal lovers that belong to the Animal Liberation Front (AFL), who are determined to reveal the truth behind the facade of Mirando Corporation. A race against the clock begins where a life is on the line.
They are both by the same screenwriter and director, which is mirrored clearly in their style of the comedic elements, the horror parts and in the action. Both films also revolve around a child that has a relationship with the depicted "monster". The two have a similar atmosphere and if you are a fan of 'goemul' you will love 'okja'.