Centuries ago, four immortal heroes were gathered together to serve the emperor. He trusted their advice, but sought their immortality, and so his six great advisors used this against him, and tricked him into crucifying the heroes on a great tree at the bottom of the world. Afterwards the emperor regretted this act, and yet committed six other sorrows before he was killed by his trusted advisors. However, before his death he undid his first great sorrow and released his loyal heroes from the tree. Mysteriously set free, the heroes now must set out to destroy the emperor"s twisted advisors, transformed into monstrous creatures by stealing the heroes immortality, and set right the emperor"s six other sorrows. If the ancient heroes cannot undo the emperor"s deeds on their own, his mad plans may tear apart the world.