In "XO, Kitty" Season 1, Episode 7, titled "TIL" (Today I Learned), the series continues to peel back the layers of its characters' lives, revealing secrets and connections that have been hidden for years. The episode begins with a jolt as Kitty shares her vivid dream with Q, only to have Min Ho inadvertently reveal his own dream about Kitty. This unexpected confession sets the stage for a day filled with revelations and confrontations.

The repercussions of the previous episode's party are felt by all as Alex announces that they are all in trouble. The fallout from the party is severe, with Saturday detention being the least of their worries. Yuri, in particular, is tasked with participating in a staged photo-op with Dae to divert media attention, a move that speaks to the high-stakes world in which these teenagers live.
Yuri's conversation with her mother reveals the weight of their family's public image, and it's clear that Yuri's actions have consequences beyond her own life. This pressure is palpable as she confronts Dae about the intercepted necklace, a symbol of the tangled relationships among the characters. Yuri's confession to Dae about her fear of losing him as a friend humanizes her, and her promise to return the necklace is a step towards redemption. However, her decision to wear the necklace to detention is a bold move that catches Kitty's attention and sets the stage for a confrontation.
Principal Lim's questioning of Yuri wearing Kitty's necklace is a pivotal moment, not just for the necklace's ownership but for the acknowledgment of a shared history between their mothers. Professor Lee's recognition of the necklace and his subsequent confrontation with Principal Lim about Kitty's parentage adds another layer to the mystery surrounding their families. Detention becomes a backdrop for Kitty and Yuri to discuss their mothers' past, a conversation that leads them to seek answers in their school's yearbooks. Their quest for the truth is met with obstacles, including a missing yearbook and secrets hidden in Principal Lim's office.
The discovery in Professor Lee's home of the elusive 1993 yearbook is a breakthrough for Kitty and Yuri. The photos within reveal a past that is both familiar and shocking, suggesting a pregnancy and a friendship that has been lost to time. This revelation is a turning point for both girls, as they begin to understand the depth of their mothers' shared history.
Yuri's public breakup with Dae is a calculated move, designed to free him to pursue a relationship with Kitty. This act of sacrifice is a significant moment in Yuri's character development, as she chooses honesty over the facade of their relationship. The episode's climax is the long-awaited first kiss between Kitty and Dae, a magical moment that has been building throughout the series. This kiss is not just a step forward in their relationship but a symbol of the barriers they have overcome to reach this point.
The episode ends on a note of anticipation, with Q and Florian's official couple status and the revelation to Alex about Principal Lim's possible maternal connection. These moments add to the episode's emotional depth, as the characters navigate the complexities of love, friendship, and family.
"TIL" is a powerful episode that delves into the past to illuminate the present. It is a testament to the series' ability to weave together multiple storylines while maintaining a cohesive narrative. The episode balances drama and emotion, keeping viewers engaged and invested in the characters' journeys. As the truth about their families emerges, Kitty, Yuri, and their friends must grapple with the implications of their shared history, setting the stage for the remainder of the season.