Yuan Yi has had a red mark on his head since he was born. Kaifeng can greatly improve physical fitness. If ordinary people want to open the seal, they need a temperature of 39 degrees and a heartbeat of more than 200. Whenever the person who holds the seal appears, the people around him will appear as if the seal is ringing, while the swordsman who opens the seal can't live beyond 25 years old, and only Yuan Yi can't live beyond 25 years old.
Identity background
After Guo Yuanyi was born in the Warring States Period, Yuan Yi was almost killed by his father because he had a "mark" on his head when he was born. After the mother died of illness, she ran away from home, lived with a woman named Shi and got married many years later.
After his wife was killed by a ghost, Yuan Yi joined the ghost killing team. Yuan Yi taught the swordsmen of Ghost Killing Team how to breathe, which greatly increased the strength of Ghost Killing Team. However, Yuan Yi was later expelled from the Ghost Killing Team for failing to kill Ghost Dance, leaving Zhu Shi at large, and his brother defected.