Xu Changan, a modern animal trainer, accidentally traveled to the Zhenguan period of the Tang Dynasty. In this era of rampant beasts and monsters, he relied on his unique talent for taming animals to establish spiritual connections with various strange beasts. When the tide of monsters outside Chang'an City approached, and when the corrupt forces of the court secretly colluded with foreign races, Xu Changan found that he not only shouldered the responsibility of protecting the city, but also faced the choice of self-salvation and finding true love. He tamed the white tiger, subdued the red flame python, controlled the phoenix... One after another legendary beasts surrendered at his feet. However, his rival, Li Mo, the son of a powerful man in the court, opposed him at every turn, trying to steal his secrets of animal training and sabotage his plans. When Li Mo kidnapped Xu Changan's loved one, and when the monster army came to the city, Xu Changan had to make a choice between protecting the common people and saving his lover... This is a Tang Dynasty beast legend about responsibility, dreams and love.