Episodes: Series - XO, Kitty - 2023

• episode #1
• episode #2
• episode #3
• episode #4
• episode #5
• episode #6
• episode #7
• episode #8
• episode #9
• episode #10

Kitty plans to use her scholarship to study in South Korea to get closer to her lover, Dae, and learn more about her mother, who studied at the same school. She meets Yuri, who shocks her that Dae is her lover.

Kitty finds herself staying in Dae's room with his friends Q and Min Ho, so she decides to drop out of school, but she changes her mind because she feels closer to her mother. At the same time, Dae suffers from his fake relationship with Yuri, which arouses Kitty's suspicions.

Kitty suffers from a nickname that is spreading around school and from Min Ho's bad treatment of her. Dae decides to tell Kitty about his relationship with Yuri, but he feels disappointed in her after she reveals Min Ho's secret. Kitty discovers a mystery about her mother.

Kitty moves to another room and tries to build a friendship with Dae. Kitty arrives by chance at the hospital whose name is on the child's bracelet that she found in her mother's things. She suspects that the teacher, Alex, is her brother, and returns to stay in the boys' room.

Kitty plans to host a school dinner during Korean Thanksgiving with the help of Alex, who later reveals to her that Professor Lee is his father but does not know this. Moreover, Jina denies knowing Kitty's mother, but it later turns out that she does know her.

Min Ho has feelings for Kitty but tries to deny them, and Alex prevents Kitty from telling Lee the truth. Meanwhile, Min Ho's party turns into a disaster when Kitty accidentally sends Lee a message about the party, and Dae fights with Yuri.

The students are punished for attending the party, and the atmosphere at school becomes tense. Meanwhile, Kitty and Yuri suspect Jina and search for the truth, which leads them to learn about their parents' past friendship and that Jina is Alex's mother. On the other hand, Yuri breaks up with Dae.

Dae and Kitty's relationship is back on, but she can't trust him again. Yuri tells Kitty the truth about her relationship with Dae, so Kitty decides to help her find her friend. Min Ho decides to stay away from Madison.

As Jina learns that Alex is her son and tells Yuri about it, Yuri quarrels with Kitty for keeping the secret from her. Dae confronts Min Ho for believing that he likes Kitty and is the reason behind her breaking up with him.

Jina tells Lee that Alex is their son. Kitty is expelled from school after discovering that she has been staying with the boys all this time, and Dae and Kitty break up before she travels. However, she is surprised when Min Ho confesses his feelings for her.