The Pearl, which protects the safety of the Fossi Sea, was stolen by the Sea Monster. Joey, the guardian of Pearl, committed suicide because of self-blame. He left a suicide note and asked his friend Sin Deyi to help retrieve the Pearl.

Sin Deyi overcame many difficulties to defeat Sea Monster and regained Pearl. But during the fight, his body was seriously injured and he fell into a coma.

He dreamed of a weapon, but he couldn't pull it out. Suddenly he heard a voice: "The power of the seal of Porter Shrine has been greatly reduced. I hope all Trojans will help me to bless the seal against the beasts!"

The blood of the Trojan awakened, and he pulled out the weapon in one go.