Nozomi and her friends, still in their Precure roles, receive fresh powers from the enigmatic Flora. Their destination: the fabled Cure Rose Garden, accessible only through the mystical Rose Pact. Hindered by their lack of knowledge in using this relic, the girls turn to the monarchs of neighboring Palmier nations for guidance. Meanwhile, lurking shadows reemerge as the sinister Eternal organization craves the Rose Pact for their malevolent purposes. The museum's director, affiliated with Eternal, displays a peculiar interest in the garden. Amidst these trials, new allies surface, including Syrup, a brash courier on a noble quest. Questions arise about his true identity and the mysterious newcomer who exudes a fragrance of roses.