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.

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.

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.