As well as being a romance tale, there’s also an intriguing subplot that centers on Kitty’s investigation into her mother’s mysterious past. This search for the truth uncovers many family secrets, one involving an adopted child. But fans will be eager to know if Alex and Kitty are actually siblings in the show.
Are Alex and Kitty Siblings in XO, Kitty?
For a while, Kitty believes that she is Alex’s half-sister, but they are not, in fact, siblings after all. Alex and Kitty are not related to each other. Kitty thought that her mother, Eve, was also Alex’s mother, but this was all just an elaborate cover-up.
Eve and Jina were best friends in the early nineties, so Eve used her name at the hospital to protect Jina’s image and reputation. Kitty found Alex’s baby bracelet in Eve’s belongings and investigated further. She found out on the hospital’s database that Eve was down as the mother and that the baby was adopted by a family in Australia.
Kitty soon realizes that Alex is the baby that was adopted as he fits the age and the nationality, but there was still one more twist in the storyline after this revelation.
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Who Are Alex’s Parents in Xo, Kitty?
Alex’s parents are actually Principal Jina and Professor Lee. Alex used an ancestry test to discover Professor Lee was his father. This led him to become a teacher at KISS (the Korean Independent School of Seoul) so that he could get to know his estranged father better.
Then Kitty and Yuri (Jina’s daughter) figured out who the mother was. Initially, Kitty thought Eve was Alex’s mother, but the two students discovered this was just a cover-up. In the 1993 school yearbook, Jina looks to be pregnant; she is the mother.
Alex eventually confronts Jina about this discovery. Jina admits that she is the mother. She gave up Alex for adoption as she was too young to raise him, which would have affected her career and reputation. Jina didn’t tell Professor Lee either, as she wanted to protect him too, just as he was ready to embark on his own adventures abroad.
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Who Is Alex’s Half-Sister?
This means that Alex’s half-sister is Yuri. They both share the same mother, Principal Jina. Yuri’s parents are Jina and President Han, while Alex’s parents are Jina and Professor Lee. President Han was also unaware of Jina’s secret, just like Yuri and Lee. In the penultimate episode of the season, Jina tells Yuri the truth, that she has a half-brother and he is her teacher, Alex.
In the end, Jina vows to spend more time with Alex and Yuri. She also speaks with Professor Lee in private, making amends with her first love, who was completely unaware of all this drama. Hopefully, Alex and Yuri can become friends now, and Alex can build new relationships with his parents.