Jae Seon is jealous of Hong Jo and Sol Ah growing closer to each other. He realizes his true feelings toward Sol Ah and wants Hong Jo to be gone as soon as possible. On the day Sol Ah was to go to her father’s house, Jae Seon goes to the train station to tell her that Hong Jo, Guk Bang left. He also tells her that he’ll always be by her side from now on.

Hong Jo finds out that his time as a cat passes by more quickly than if he was human. Cats age faster than humans and that will eventually lead him to die before Sol Ah. He realizes he doesn’t have much time to stay by Sol Ah’s side. After much contemplation, he decides to leave Sol Ah rather than to tell her the truth about himself.

Hong Jo thinks drinking coffee will help him stay awake. Hong Jo tells Sol Ah that he can stay up all night with her if she wants. Embarrassed, she sleeps over at Ji Eun’s place instead. Hong Jo tells Sol Ah that he will not stay at home if she feels uncomfortable. Meanwhile, Hong Jo gets to know Sol Ah’s feelings for him.

Sol Ah waits for Hong Jo, but he doesn’t show up because he gets abducted. Sol Ah and Jae Seon start searching for Hong Jo. Hong Jo apologizes to Sol Ah for not showing up that night. Sol Ah worries that Hong Jo might disappear again, while Jae Seon is not happy with this situation.

Jae Seon finds out that Guk Bong is actually a cat. He’s Hong Jo. Hong Jo asks Jae Seon to keep it as a secret from Sol Ah because he wants to be by her side. In return for keeping his promise, Hong Jo begins working as a part-timer at Jae Seon’s café.

Ji Eun and Sol Ah become friends and Sol Ah gets to know Ji Eun’s true feelings about Doo Sik. Doo Sik who is oblivious about Ji Eun’s interest in him and thinks she’s the only one who hates him at work. It provokes him and he tries to persuade Ji Eun to like him.

Sol Ah thinks Hong Jo is dating Ji Eun. Jae Seon realizes that he misunderstood Sol Ah and apologizes to her, but Sol Ah doesn’t accept his apology. Sol Ah and Ji Eun become friends and have a drink together. Sol Ah encounters Guk Bong, but she still thinks Hong Jo is Guk Bong.

Hong Jo tells Sol Ah that Hong Jo likes her. Hong Jo finds out that there was a misunderstanding between Sol Ah and Jae Seon because of him. Guk Bong comes back to his house. Sol Ah thinks Hong Jo has a girlfriend and she wants him to tell her about it. Meanwhile, Hong Jo leaves Sol Ah’s house.

Sol Ah and Hong Jo both feel perplexed as Sol Ah decides to send Hong Jo off. Hong Jo feels like he’s being abandoned and Sol Ah feels like she’s letting off a good companion. Hong Jo never wished to be a human being so badly. On the day of meeting the new owner, Hong Jo disappears and Sol Ah roams around all night to look for Hong Jo.

Sol Ah tries to move on from Jae Seon and goes on a blind date. At the meeting spot, she finds Guk Bong and realizes that Doo Sik set her up with Guk Bong. The two enjoy the afternoon anyway and come back home with fun memories. However, Jae Seon breaks the news to Sol Ah. He found someone who will take Hong Jo.

Doo Sik gives Sonamu’s free coupon to Ji Eun, and Ji Eun goes to Sonamu. Doo Sik brings Hye Yeon and Da Som to Sonamu, and they encounter Ji Eun there. Sol Ah and Doo Sik realize that Ji Eun was also a member of the art club. Meanwhile, Sol Ah tells Jae Seon to stop making her confused.

Sol Ah gets a call from Sil and thinks Hong Jo is Guk Bong. Doo Sik and Jae Seon come to Sol Ah’s home to give a warning to Hong Jo, but they can’t find Hong Jo anywhere. Sol Ah asks Jae Seon why he ran away, but he only says sorry to her. Meanwhile, Sol Ah uploads “Helpless Beodul Love” Episode 1.

Sol Ah starts drawing webtoons again at her new place. Hong Jo continues to orbit around Sol Ah living a double life. One day, Hong Jo accidentally saves Sol Ah and becomes her life-saver. Things seem to be settling down, but there's something fishy about the new house. Is there someone else living with Sol Ah and Hong Jo?

Sol Ah moves to a new place on her own. It’ll be her first time living alone and she’s feeling mixed emotions about it. With high hopes, she arrives at her new house and is surprised. She’ll be neighbors with Jae Seon, her first love and crush.

Things would’ve been detrimental if Hong Jo hadn’t been there when Sol Ah’s dad, Soo Pyung, fainted in his apartment. Sol Ah, at the hospital, finds out about Soo Pyung’s illness and also meets his fiancée for the first time. Now that Sol Ah has to move into a new house to live alone, she feels somewhat reassured that Hong Jo is by her side although she still hates cats.

Sol Ah has feelings for Jae Seon, but one day, Jae Seon disappeared without saying anything. It turns out Jae Seon has been dating a new rich girlfriend whom he recently broke up with, leaving him with the cat he gave her as a gift. Because of Jae Seon’s cat allergy, Sol Ah somehow ends up taking the cat home.