Subdue Demons, but in the Wild West!

Yun Shi, a Taoist priest who lives in the 21st century, accidentally traveled to the western United States in the 19th century by chance. What caught Yun Shi's eyes were not only cowboys, ranches, bars, and robbers, but also... Strange evil spirits. When he was desperate and chanted the Beidou Great God's Curse, he found that the monsters retreated one after another? !