"Sekigata" x "Demons" x "Humans", a forbidden battle royale unknown to the world begins now - 800 years have passed since the battle gods "Sekigata", who are proud of their overwhelming speed and strength, sealed the "Demons" that caused the destruction of the world after a heroic battle. Now, "that battle" is just a legend in a distant myth. The "Stable Generation of Sekigatas" who have never fought since birth are enjoying a comfortable life. At this time, someone has resurrected the demons from their long sleep again - force, wisdom, politics, conspiracy, in short, whatever can be used, take out whatever you can! A three-way battle royale with no rules and no restrictions begins now! !