The supporting characters provide essential perspectives that challenge and support the main characters' decisions. Their interactions and advice serve as catalysts for the protagonists to reflect on their choices, ultimately guiding them toward a deeper understanding of love and happiness.

In episode 12, a pivotal moment occurs when the main characters, who have been navigating their complex relationship throughout the series, finally confront their feelings for each other. This leads to an emotional confession that solidifies their bond.

In this episode, Ji Soo experiences a significant transformation as she grapples with her past decisions and the impact they have on her present relationships. Her internal struggle is depicted through poignant flashbacks and moments of vulnerability, ultimately leading her to make a courageous choice.

The setting plays a crucial role during the climax, as the characters find themselves at a familiar location that holds sentimental value. The atmosphere is charged with tension and nostalgia, enhancing the emotional stakes of their confrontation and resolution.

Min Joon faces intense internal conflict as he struggles with his feelings of guilt and responsibility towards Ji Soo. His emotional turmoil is depicted through his interactions with other characters and his moments of solitude, where he contemplates the consequences of his actions.