Story

Grand Fisher's worldview is based on the Korean Peninsula.

In ancient times, the continent was overflowing with evil spirits. People were attacked by demons and seemed to be facing a time of destruction without even being able to resist. At the moment of desperation, a ray of hope came. The exorcism stone, a mysterious stone that eradicates evil spirits, appeared.

The boy, who was called Yongja, uses the power of the exorcism stone to defeat the demons and later seal the exorcist. 100 years since peace was restored. Humans hid powerful exorcisms around the world and suppressed the power of evil.

Over the course of 100 years, however, the exorcism has weakened and the evil spirit has flowed out little by little. Feeling a crisis, the kings decide to find and seal fish with evil spirits. In each country, a huge amount of prize money is offered for various unusual fish, and the era of fishing has opened due to those who aimed at it. This energy leads to Jeju Island in the south of the Korean Peninsula, and the water fills Baeknokdam at the top of Hallasan Mountain, and the adventure to catch mysterious fish begins here. Now, users are part of the "Grand Fisher" to ward off evil spirits and embark on a tough journey just for fishing through competition and collaboration to win more prizes and honors.