"Wedding Peach DX" is a continuation of the original "Wedding Peach" series, expanding on the themes of love, friendship, and the battle between good and evil. The story centers on Momoko Hanasaki, a cheerful high school girl who transforms into the angelic warrior Wedding Peach. Alongside her friends Yuri Tanima and Hinagiku Tamano, who become the warriors Angel Lily and Angel Daisy, Momoko fights against the forces of the Devil Tribe, led by the malevolent Raindevilla. The trio is guided by the angel Limone, who aids them in their mission to protect the world from the Devil Tribe's schemes to corrupt love and spread hatred.

The narrative delves deeper into the origins of the conflict between the angels and the Devil Tribe, revealing the tragic backstory of Raindevilla and her connection to the Sacred Four, a group of powerful angels. As the story progresses, Momoko and her friends face increasingly formidable adversaries, including the enigmatic and conflicted character Pluie, who harbors a mysterious past tied to the angels. The series explores themes of redemption, sacrifice, and the enduring power of love, as the characters confront their own fears and insecurities while striving to protect the world.

Key plot points include the discovery of the Sacred Bridal Veils, powerful artifacts that enhance the warriors' abilities, and the climactic battles against the Devil Tribe's strongest generals. The series also introduces new allies and enemies, further complicating the dynamics of the conflict. Throughout the story, the bonds between Momoko, Yuri, and Hinagiku are tested and strengthened, highlighting the importance of teamwork and trust in overcoming adversity.

The characters' personal growth is a central focus, with each warrior facing individual challenges that reflect their unique personalities and struggles. Momoko's unwavering optimism and determination, Yuri's resilience and loyalty, and Hinagiku's strength and compassion are all put to the test as they navigate the complexities of their dual lives as high school students and angelic warriors. The series concludes with a resolution that ties together the various narrative threads, offering a satisfying conclusion to the ongoing battle between love and hatred.