"Paradise Kiss" centers on Yukari "Caroline" Hayasaka, a high school student who feels trapped by societal expectations and her mother's rigid plans for her future. While walking home one day, she is approached by a group of fashion design students who recruit her to model for their brand, Paradise Kiss. The group, led by the enigmatic and flamboyant George Koizumi, includes the pragmatic Isabella, the cheerful Arashi, and the reserved Miwako. Initially hesitant, Yukari is drawn into their world of creativity and self-expression, which contrasts sharply with her mundane life.

As Yukari becomes more involved with Paradise Kiss, she begins to question her priorities and aspirations. Her relationship with George evolves into a complex romance, marked by his intense personality and her struggle to reconcile her feelings with her desire for independence. The narrative explores themes of identity, ambition, and the tension between personal dreams and external pressures. Yukari's journey is one of self-discovery, as she navigates the challenges of love, friendship, and pursuing a career in modeling.

The supporting characters also undergo significant development. Miwako and Arashi's relationship faces challenges as they grapple with their own insecurities and aspirations. Isabella, a transgender woman, provides a nuanced perspective on gender identity and acceptance within the group. The dynamics between the characters are central to the story, highlighting their individual growth and the impact of their shared experiences.

The plot builds toward the group's participation in a fashion show, a pivotal moment that tests their resolve and creativity. The conclusion of the series reflects the characters' evolving paths, with Yukari making a decisive choice about her future. "Paradise Kiss" is a coming-of-age story that blends romance, drama, and the pursuit of artistic passion, offering a compelling exploration of its characters' lives and ambitions.