XO, Kitty

With just hours to go before summer break, Kitty resolves to share her feelings with Min Ho, but a crowded trip to Busan threatens to kill the vibe.

Kitty returns to Seoul with a game plan for an unforgettable semester, only to discover a cocky ex-classmate is back — and out to upstage her.

As Min Ho works to pull off Eunice's video shoot, a stylish newcomer sets off Kitty's insecurities. Yuri hustles to make the most of a new opportunity.

Awaiting the results of their midterm exams, the group lets loose at an amusement park, where a daunting ride rattles Kitty's confidence.

Kitty tries to shake her suspicions as family and friends convene for a Chuseok feast, but drama erupts when explosive secrets spill into the open.

A visitor from home tries to lift Kitty's spirits. Eunice makes a career decision with consequences for Min Ho. Q and Marius retread the past.

Kitty scrambles to mend friendships ahead of Yuri's fashion show — and she's not the only matchmaker trying to stitch the group back together.

The KISS crew navigates old flames, new prospects and second chances as they gather to celebrate Kitty's 18th birthday.

Determined to avoid romantic chaos and learn more about her mom, Kitty returns to Seoul. But with new roommates and unresolved crushes, it's complicated.

Kitty pursues a new love interest, but a night of dancing spins into drama. A fierce competition emerges during class, and Q's track rival plays dirty.

During Seollal, Kitty and Praveena enlist Min Ho's help for a heist, Juliana confronts Yuri, and sparks fly from a bonding moment years in the making.

A wintry weekend at Min Ho's ski cabin turns into a WiFi-less nightmare when Kitty and the gang get snowed in — and shocking revelations come to light.

As suspicions about Stella grow, Kitty chases a lead to long-lost relatives as Yuri tries to make amends with Juliana. Another scandal rocks the school.

As Min Ho and Yuri do damage control to fix fractured relationships, a friendly face from home pays Kitty a visit — and brings life-changing information.

On the eve of the Cherry Blossom Ball, Kitty focuses on family while following a hunch about Stella. Yuri helps Dae prepare for his performance.

Dreams hang in the balance as Stella's concert plan comes together. With emotions running high, will Kitty reveal her feelings before the semester ends?

Yearning to feel closer to her late mother and surprise her long-distance boyfriend, Kitty sets her sights on attending a prestigious school in Seoul.

A jet-lagged Kitty can't wait to see Dae, but their long-awaited reunion goes awry due to dormitory complications and the fallout from a viral video.

Dae experiences conflicting emotions over a sudden change of plans as Kitty deals with her own tangled feelings and an unfortunate new nickname.

Kitty joins Q's outdoor club to connect with Dae away from school, but a clue about her mom soon sends her on a fact-finding — and matchmaking — mission.

With no plans for the Chuseok holiday, Kitty attempts to prepare a special feast for other students on campus with help from an unlikely source.

Drama erupts and romantic connections emerge at Min Ho's swanky party, where a determined Kitty intends to work through her feelings about Dae.

Tensions turn into revelations during a Saturday detention session after Kitty reluctantly agrees to help Yuri figure out what Principal Jina is hiding.

A school trip gives Dae a chance to regain Kitty's trust as Yuri opens up about Juliana, Florian confides in Q, and Min Ho makes a relationship decision.

With finals approaching, Kitty leans on her friends for extra help, but tempers flare at KISS and beyond amid bombshells, betrayals and blazing fights.

Final grades, class rankings and complicated truths cause emotions to run high as Kitty takes a stand with her future at KISS hanging in the balance.