The main story is about a fat and cute girl named Qiu Shi, who is an ordinary female supporting character in the 705 time travel company. Her mission goal is to be the heroine's good friend and best friend, and she will use all means to get the hero and the heroine to be together. But every time she travels through time, she will meet a little brother who cares about her very much. However, in the original novel, this little brother has nothing to do with him at all. In the end, the story of Qiu Shi's sister and her little brother he.