Six gorgeous women embark on a train journey to Sunshine Hill during the early 1800s in Early Reins. However, their voyage takes an unexpected turn when the train is attacked by robbers and the soldiers on board are left defenseless. Surprisingly, these charming ladies reveal their combat skills, with Margarette taking on the role of the leading lady. She yearns to be a sheriff despite being inexperienced, but this challenging expedition helps her acquire the necessary skills. Alongside Spencer, another passenger, the team of Western warriors collaborates to combat the malicious bandits and escort the train to safety.