The third episode of XO Kitty Season 3 unfolds with Kitty and Min Ho embarking on new adventures as a couple. Kitty notices a shift in Min Ho's behavior towards her as her boyfriend, compared to when they were just friends. Simultaneously, Kitty grapples with her Korean Literature elective class taught by Jiwon. Jiwon assigns a heavy workload for the weekend, but despite requesting an extension, Jiwon denies her request and asks her to leave.
As she exits, Kitty observes Alex attempting to converse with Jiwon, who ignores him. She realizes that Alex has a crush on Jiwon and decides to set them up. Kitty shares her idea with Min Ho and Jin, but they express doubt about the compatibility of the pair. Soon afterward, they meet Q, and the group divides into couples to spend time together.
Meanwhile, Min Ho assists Kitty with her Korean pronunciation but admits to being stressed about Eunice's music video shoot. He mentions that Designer Yisoo is still willing to collaborate with Eunice. Min Ho leaves to check on Eunice and asks Kitty to meet Yisoo's assistant at school. Gigi arrives, and Kitty feels intimidated by her connection to Min Ho. Marius is pleased to see Gigi and Min Ho together again. In private, he informs Kitty that Gigi is Min Ho's first love, further fueling her insecurity.
Juliana plans a cultural date with Praveena, who is not very interested but agrees. At a café, Praveena sees Yuri and buys her a drink to ease tensions. Yuri later catches Kitty snooping through Gigi's social media and asks her to stop overthinking. Kitty suggests that Yuri work with Yisoo to stay close to Gigi. Yuri realizes Kitty's intentions and asks her to calm down. Kitty admits she is overreacting and plans a spa date with Min Ho.
However, Min Ho cancels the date due to work commitments. Kitty inquires about Gigi, and Min Ho describes their past as a close childhood friendship. Kitty shares her concerns, but Min Ho urges her to focus on their current relationship rather than his past.
Kitty then attempts to set up Jiwon and Alex by tricking Jiwon into an aquarium date. She also hopes this will help her get an extension for her assignment. Jiwon arrives at the aquarium and is surprised to see Alex, while Kitty heads to Eunice's shoot. At the set, Kitty introduces Yuri to Gigi.
Kitty tries to help Min Ho but struggles due to her limited Korean proficiency. Min Ho thanks Gigi for her support, which makes Kitty uneasy. Elsewhere, Dae arrives to support Eunice, but she ignores him. Q runs into Marius, who teases him about a compromising photo.
Q confides in Kitty, and they realize that Marius is manipulating them. They decide to confront him, and Kitty urges Q to tell Jin the truth. Meanwhile, Yuri accidentally damages a designer dress, upsetting Gigi. Q creates a distraction by collecting phones to check Marius' device.
At the photo shoot, Min Ho endeavors to soothe Eunice's nerves before filming commences. Kitty, eager to assist, inadvertently spills something on Eunice's outfit. Swiftly and deftly, Yuri remedies the situation, enabling the shoot to proceed unhindered. Gigi is awestruck by Yuri's prompt action.
In parallel, Marius reveals to Q that he has erased the photograph in question. Nonetheless, Q persists in accusing him of attempting to meddle in his relationship and sternly instructs him to keep his distance.
Post-shoot, Dae struggles to reach Eunice. Min Ho informs him that Eunice might have been involved with actor Tae Oh during the tour. Dae's response is subdued, and he leaves the scene. Elsewhere, Kitty confides in Min Ho that she had been harboring feelings of envy towards Gigi. Min Ho empathizes and offers to assist her with her essay.
Yuri returns home and shares with Juliana and Praveena about securing an interview with Yisoo. Juliana is taken aback by the harmonious interaction between Yuri and Praveena. Back at the aquarium, Kitty encounters Jiwon and learns that her date with Alex did not go well. Jiwon is disappointed with Kitty's preoccupation with others at the expense of her studies and withdraws the extension. The episode concludes with Kitty realizing that she has to complete a 10-page essay for her Korean Literature class by the next morning.
