The character I acted as was one of the many emperors of the Tang Dynasty, Tang Xuan Zong.
The story of "A Step To The Past" goes like this; 4 students were going to school one day and got struck by a mysterious lightning bolt that teleported them to the Tang Dynasty! One of the four was scared of everything, another didn't listen to to his teacher's and parent's advice. Another was very much of a show-off and the fourth one was the school bully. They met a lot of famous people from the Tang Dynasty, such as the poet Li Bai, the emporer's wife Yang Gui Fei, the emporer Tang Xuan Zong, and the emporer's son Li Xuan. They also got to see many interesting things, such as a classic ancient dance, an ancient chinese instrument performance and the gigantic chinese drums! Later that day, they also met a bad person who beat them up. Luckily, the good people helped them and chased the bad guy away.
After a while, all the students started missing home. Just at that moment, they heard the rumble of thunder and lighting once again and hid under a tree. The lighting bolt came back, and teleported them back to the present. From that day on, all four became good kids!