Yoo Na asks her sister to have the courage to confess the truth to Seo Won because he seems like a good guy.Hina tells her sister that although her situation is unusual, she doesn't want to act strange in front of the man she likes.With only seven days left to break the curse, Haena decides to spend one day with Seo-won.That night, Haena and Seo-won meet across the street.Seo-won asks Hae-na to wait for him, but he notices a strange-looking man following Hae-na.He crossed the street to Hina and attacked the man.

It turned out that the man was Haina's father, Mr. Han Changtong, who wanted to give his daughter a surprise.Seo-won apologizes after realizing his mistake, and Mr. Han Huandong demands that he kiss Hae-na immediately.Shuyuan was confused by these words, while Mr. Han Huantong kept blaming the teacher for not being close to his daughter.Hina is embarrassed by this interaction and takes her dad away.She tells Dad about triggering the curse when she was drunk, and Seo-won’s fear of dogs.Hae Na also told her father that she had true feelings for Seo Won and didn't want to look weird.

Han Changtong told the love story between him and Haina's mother, trying to make Haina feel better.He also reminds her that time is running out and asks her to trust Seo-won.Hae Na sends a text message to Seo Won to apologize for what happened before.However, she received a message from Eun-hwan asking her to meet him in person.Knowing that her secret may soon be revealed, Haina tells Yuna and Yuze that they accompany her to meet Eunhwan at an abandoned house on the outskirts of the city.There, Eun-hwan warns Hae-na, threatening to expose her if she doesn't give him and her family all the money.

Eun Hwan threatens to release a video of Yoo Na turning into a dog, which was shared by her ex-boyfriend Sang Soo.Haena is scared, but Eunhwan escapes before Yuze can catch up with him.That night, Hina's parents came to the house to discuss the threat.Yoona and Haena both apologized to each other for causing the incident.Meishun gave the entire Han family and Yuze a holiday and decided to take revenge on Sang Zhu.The next morning, Seo-won is worried about Hae-na skipping school.He was concerned that she was unwell and decided to visit her.However, Shuyuan met Junrui who was playing with his mobile phone.Junrui told Shuyuan that in his mobile game, Coco was the name of his pet dog.Seo-won confronts Cui Yu about the lie, but Cui Yu insists that Jun Rui named the dog after his real pet dog Coco in the game.

Seo-won adopted Cui Yu's point of view and ate some food at Haina's house.He left meals on her doorstep and texted Hina, wishing her a speedy recovery.Hae Na is worried that Eun Hwan will reveal her secret to Seo Won and panics.Yoona blames herself for being the cause of Haena's illness and starts crying.At the same time, Yuze, Meishun and Han Huantong found Sang Zhu's address and went to visit him.The three tortured and tied him up.They find Eun-hwan's address using his phone and reach the place.Seo-won discovers that his students are watching Eun-hwan’s reveal video, in which he promises to reveal the identity of the teacher who turned into a dog.He hurriedly searched for Eun-hwan, worried about Haena's safety.

Seo-won breaks into Eun-hwan's studio and starts a fight with him.Eun-hwan tries to escape and Seo-won chases him, but Eun-hwan takes Seo-won to the place where he bullied Seo-won when he was a teenager.Eun-hwan asks his friend to bring his dog there and beats Seo-won while he is distracted.At the same time, Meishun and Han Huantong discovered that Enhuan's studio was open.They ransacked the place and took most of the hard drives and photos.Yu Ze, Mei Shun and Han Huantong forced Sang Zhu to call Eun Huan and tell him about the destruction of the studio.Eun-hwan feels uneasy when he sees his studio.He calls Haena and threatens to cause harm to Seo-won.

Without thinking about time, Hae-na hurried to see Eun-hwan to protect Seo-won.Seo-won wakes up and convinces Eun-hwan's friends to let him go.He finds Eun-hwan, tries to live broadcast Hae-na's transformation, and fights with him.Seo-won beats Eun-hwan, knocking him unconscious, and Hae-na escapes.Seo-won follows her and catches her minutes before she transforms.Seo-won asks Hae-na to trust him and tell him her secret.Hae Na tries to tell Seo Won the truth but fails.She turned into a dog in front of Shuyuan, and Shuyuan finally understood the truth.Despite being afraid of dogs, Seo-won recalls all the good memories he had with Hae-na and picks her up.He kisses Hina, who transforms into a dog, and she immediately changes back to a human.Hae Na thanks Seo Won for trusting him and confesses her feelings for him.

Meanwhile, Bao Qian wakes up from a dream in which he, as a mountain god, curses Haena.After he woke up, he went to the abandoned house where Eun-hwan was unconscious.Eun-hwan wakes up and tries to find Seo-won, but Bo-gyeom uses his magical powers to erase the incident from his memory.After some time, Eun-hwan woke up alone in that abandoned house, feeling confused.In a flashback from the past, a young girl named Chuying worshiped in front of the mountain god.When Chuying grew up, he continued to visit the mountain god's temple, where he met Baoqian.