Weird? Cthulhu? Go Talk to My Heroic Spirit

This world needs special talismans so that people can spend the night safely. The original owner was a government official, but he failed to pay filial piety on time and was kicked out. After Chen Chen traveled through time, he found that the yellow talisman was burned out and was in a desperate situation. Unwilling to be reconciled, he took up the Bai Zhan Dao on the day of beheading. Unexpectedly, the system activation conditions were met to protect one person. (Self) So he painted a picture of a heroic spirit from his previous life protecting the refugees on the door and gained protection points. Gradually, he began to draw not only doors, but also paper, pens, and city walls. Until that day, the Cthulhu army gathered under the city. Chen Chen smiled slightly. The sad and passionate charge horn sounded from the south gate, and the Qin King's breaking formation music from the north gate made people feel as if they were dead. By the way, I forgot to mention that you can summon heroic spirits by accumulating killing points by killing evil spirits. Those of you who are restless, go ahead and talk to my séance.