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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.