Gu Yunting was sick since he was a child and was sent to Yaowang Valley for many years. There, he studied medicine, poison, and learned to survive. He also met a group of people he would never forget, including the cold and stern senior sister, the senior brother who always loved drinking and watching movies, and the classmates who were poisoned by him every day. So: the senior brothers began to refuse to eat the food he cooked, and Wang Xu took a silver needle to test the poison before drinking. Senior sister Ling Chu thought about how to punish him every day. It was not until the situation in the capital was in chaos and the Gu family was pushed to the forefront. On the day Gu Yunting came down the mountain with his sword on his back, everyone finally realized that the Yaowang Valley had raised not a sickly young master over the years, but a sinister one.
