The background is after Gangpao returns to gear: he accidentally meets a girl who looks very much like Nuan Nuan, and the girl also likes Gangpao to be with Gangpao all the time. After Nuan Nuan figured it out, she was about to find Gangpao and found that Gangpao was with a girl who looked very much like herself. She was shocked. She didn't expect that this girl looked very much like herself. After asking her parents, she found out that the twins were twins and her sister was given to relatives to raise. Gangpao's parents met her and her sister for dinner, thinking they were girlfriends, and were very happy to approve their relationship. Gangpao looked a little hesitant at the similar faces. Nuan Nuan was at a loss because she suddenly had a younger sister, so she thought it would be good to let go. Gangpao saw that Nuan Nuan didn't even look for him, and it just so happened that her younger sister confessed her feelings to him, so they started dating together. Nuan Nuan is sad that she often goes back to school alone. I walked through those old paths over and over again, and every time I met a junior student, because Nuan Nuan looked smaller, I thought Nuan Nuan was a new student, and I couldn't help teasing Nuan Nuan every time, (like a steel gun) and they got together half-heartedly. One day at school, I met Gang Pao who came back to school to get a report. Gang Pao was jealous and finally found that he could only like Nuan Nuan, and then the hot chicken couple lived their lives without shame or impatience.