Liu Zaiyi's sister Liu Zai Na has been guarding her since childhood. Even if she knows the answer to her homework, she deliberately answered wrong out of protecting her sister.However, in this comparison, Liu Zaiyi gradually surpassed Liu Zai Na.

In order to improve his grades, Liu Zai Na ventured into the teacher's office to steal the midterm exam paper, but was accidentally caught by Yu Seqi's father Yu Daohe.In order to prevent Yu Daohe from revealing this matter, Liu Jae-na took the initiative to approach him.

Liu Zaiyi came to the photocopying room according to the video guidance on her mobile phone, but unexpectedly met her sister Liu Zai Na.While competing for the phone, the two accidentally dropped it out of the window.Liu Zai Na jumped into the window to pick it up without hesitation, but was discovered by the school worker and fled in a hurry. Liu Zai Yi successfully retrieved her cell phone.

Jin Fanxiu became in a trance after taking the medicine. In addition, Zhu Yili casually promised to arrange friendship for her if she found the charger. However, after Jin Fanxiu tried hard to find the charger, she ignored her due to the loss of her phone.Finally, Jin Fanxiu, who could not bear it, tried to hurt Zhu Yili with a knife, but accidentally caused Yu Seqi to be injured.

Yu Seqi was rushed to J Medical Center where Liu Zai Na’s father is located.After learning the news, Liu Zai Na rushed to the hospital immediately.In the operating room, Liu Zai Na tried to suture a wound for the first time with her father's encouragement.

However, when Yu Seqi woke up, Liu Zai Na pushed her to take a walk and chat.Unexpectedly, Liu Zai Na's words seriously hurt Yu Seqi's father made Yu Seqi turn her back on her face in an instant.