There are six taboos in Yaga continent
'Demon of the Abyss'
'Blood Angel'
'Twins of Destiny'
'Dark Unicorn'
'Silver Spiny-tailed Marten'
'Dark Artifact Sahir'
But there is another even more taboo existence——
All six came out together.
Legend has it that what they are looking for is enough to destroy the entire world.