Director:
The Tensenga / Congyunya and Tetsuya / known as the "Three Domineering Swords in the World" / govern the three realms of heaven / earth and man. They were all owned by Inuyasha's father / King Douga. King Touga falls in love with the human princess Izayoi and gives birth to Inuyasha / which arouses the jealousy of Setsuna Tenmaru / a military commander who has a crush on Izayoi. The seriously injured King Doya used his natural teeth to save his lover who was killed by Mengwan / and then started a decisive battle with Mengwan. After the fierce battle / King Douga was about to die. He ordered Mingga to give the natural teeth and the iron broken teeth to Sesshomaru and Inuyasha respectively / while the evil and powerful Cong Yunya was permanently sealed. Hundreds of years later / Cong Yunya came to modern times through the bone-eating well and got rid of the shackles of the seal. It first controlled Inuyasha's body and mind / and returned to the Warring States Period to start a fierce battle with Sesshomaru. At the time of crisis / Kagome's power forced Cong Yunya to leave Inuyasha's body. But it soon found a new substitute / and summoned Setsuna Mengwan / who had turned into bones / back to the world to take revenge on the two sons of King Douya...
Cast:
并称为“天下霸道三剑”的天生牙、丛云牙和铁碎牙分管天、地、人三界，当年全部为犬夜叉的父亲斗牙王所拥有。斗牙王与人类公主十六夜相恋，生下犬夜叉，此举惹来暗恋十六夜的武将刹那猛丸的嫉妒。身负重伤的斗牙王用天生牙救活被猛丸杀死的爱人，随即与猛丸展开决战。恶战之后，斗牙王生命将终，他命冥加将天生牙和铁碎牙分别赐予杀生丸和犬夜叉，而拥有邪恶强大力量的丛云牙则被永久封印。 数百年后，丛云牙通过食骨井来到现代，
