"Complex x Complex" is a romantic comedy anime that explores the intricacies of relationships and the misunderstandings that arise from miscommunication. The narrative centers on two main characters, Aoi Oribe and Rikka Takanashi, whose lives become intertwined in unexpected ways. Aoi is a reserved and studious high school student who prefers to keep to himself, while Rikka is a cheerful and outgoing girl with a knack for getting into trouble. Their personalities clash initially, but circumstances force them to spend more time together, leading to a series of comedic and heartfelt moments.

The story begins when Aoi accidentally discovers Rikka’s secret part-time job at a maid café, which she keeps hidden from her classmates. Rikka, fearing that her reputation will be ruined, blackmails Aoi into keeping her secret by threatening to reveal his own embarrassing hobby—writing romantic fiction. This mutual blackmail sets the stage for their reluctant partnership, as they navigate school life while keeping each other’s secrets. Over time, their interactions grow more frequent, and they begin to develop a deeper understanding of one another.

As the series progresses, the dynamic between Aoi and Rikka evolves from one of mutual distrust to a genuine friendship, with hints of romantic tension. Supporting characters, such as Aoi’s childhood friend and Rikka’s fellow café workers, add layers to the story by introducing subplots that explore themes of loyalty, self-discovery, and the challenges of balancing personal aspirations with societal expectations. The narrative balances humor with moments of introspection, highlighting the characters’ growth as they confront their insecurities and learn to trust each other.

The plot is driven by a series of episodic events, ranging from school festivals and cultural exchanges to personal dilemmas and misunderstandings. These events serve to deepen the bond between Aoi and Rikka while providing opportunities for comedic relief and emotional development. The series concludes with a resolution that ties up the central conflicts, leaving the characters in a place of mutual respect and understanding, though the future of their relationship remains open-ended. "Complex x Complex" is a lighthearted yet thoughtful exploration of the complexities of human connections, blending humor and romance in a way that resonates with its audience.