Xia Yi is an unknown college student who traveled to a mysterious world because of an accident. After saving a gentle doctor named Mu Ang, he lived aimlessly and in confusion in this world. Because Mu Ang was grateful, he asked his friend Han Yingling to take Xia Yi in. But it happened that Xia Yi, who was studying foreign languages in the original world, met Douglas and his friends who were traveling around the world, and kindly invited them to stay in the Han Mansion. From then on, a series of ridiculous incidents occurred.