Flowers Bloom in May and Snow Falls in June

One day, Qin Sheng, who had been impoverished for a long time, received a rare interview opportunity. Unfortunately, he had a car accident on the way to the interview and accidentally traveled to another world... This place is different from the Spring and Autumn and Warring States periods mentioned in ancient history. Instead, the twelve kingdoms stood at the same level. People here are practicing a magical power, which has given rise to three professions: barbarian warriors, wizards and animal pastors. As the protagonist, what should Qin Sheng do in the face of the drastic changes in the world?