"I will sacrifice my blood to your death." - Mortal swordsman x nine-tailed fox demon, a life and death contract spanning three hundred years.
Core story:
Reincarnation of fate: The entanglement between the Shen family bloodline and the Qingqiu Fox Clan, the betrayal and redemption three hundred years ago.
Human-monster Contract: The life and death bond between the mortal swordsman Shen Mo and the nine-tailed fox demon Bai Li. The truth is far more cruel than love.
The battle for the king's seal: the green hills collapse and the underworld pours in, a game within a game in which souls are sacrificed.
Story background:
The barrier "Qingqiu" between the human world and the demon world is on the verge of collapse, and the underworld's Yin soldiers are taking advantage of the passage to cause chaos. Shen Mo, a down-and-out demon-slayer who was expelled from his family, got involved in a dispute between the Fox clan because of a broken sword inherited from his ancestors, only to find that he was already a player in the game three hundred years ago.
Intention: The shackles of blood and mission