Beginning with Dean's grandfather and even earlier, Mother Dean's family began to hunt down all kinds of creatures and monsters that endanger humans, such as vampires, werewolves, and changelings......

Dean Winchester: Older brother, unwavering "Paranormal Hunter". Pen ~ fun ~ Pavilion www.biquge.info Since the murder of his mother, he and his father have been persistently hunting all kinds of supernatural creatures.

Sam Winchester: Younger brother, a college student about to enter graduate school of law. After high school, he quit the "supernatural hunting" activity organized by his father, and he lived happily with his girlfriend and had a good career future. The post-girlfriend is killed by a demon, and in order to track down the murderer, he searches for his missing father. And at the request of various Dean, join the ranks of demon hunters.

Cassideo, an angel of the lower three levels, pulls Dean, who has fallen into hell, out of hell, a seeker of God the Father, who is finally expelled from heaven by Dean for the righteousness in his heart.

Anna, the former captain of Casidio's team, escaped from heaven for disobeying God's orders in the book of Revelation, lost all her memories and incarnated as a human, and then found her honor with the help of Dean and Sam, and devoured her future identity as an angel.

Ulliel, who is in the same angel squad as Casidio, hates the humans created by God in his heart, betrays heaven, and is bent on getting Lucifer out of hell, and does not hesitate to kill the other angels who are also brothers, and Casidio and Anna kill them together.

Jesse, a child born of a demon-possessed virgin, is half-human, half-demon, but far more powerful than these two races, also known as anti-Christian in some scriptures, when Lucifer escapes, Jesse's power will also be released, and according to the prophecy, he will be Lucifer's most powerful weapon against heaven.

Bobby is a good friend of the brothers' father and a demon hunter himself. On his daily journey against the forces of evil, Bobby will always give the two brothers selfless help.