"True Love Tricolore" is a romantic comedy manga that centers around the life of Itsuki Akiba, a high school student who finds himself entangled in a complex love triangle. The story begins when Itsuki's childhood friend, Natsumi Aizawa, confesses her feelings for him. Natsumi is cheerful, energetic, and deeply devoted to Itsuki, but her confession catches him off guard, as he has always seen her as a close friend rather than a romantic interest.

Complicating matters further, Itsuki soon encounters two other girls who develop feelings for him. The first is Rinka Fujisaki, a quiet and reserved transfer student with a mysterious past. Rinka's calm demeanor and subtle expressions of affection contrast sharply with Natsumi's boldness, creating a dynamic tension in the narrative. The second is Yuzuki Hoshino, a popular and confident upperclassman who initially appears aloof but gradually reveals a softer, more vulnerable side as she grows closer to Itsuki.

As the story progresses, Itsuki navigates the challenges of balancing his relationships with these three girls, each of whom represents a different aspect of love and emotional connection. Natsumi's unwavering loyalty, Rinka's quiet sincerity, and Yuzuki's confident yet tender approach all contribute to the complexity of Itsuki's romantic dilemma. The narrative explores themes of friendship, self-discovery, and the nuances of romantic attraction, as Itsuki struggles to understand his own feelings and make a choice that could change his life.

The manga employs a mix of lighthearted humor and heartfelt moments, with Itsuki's interactions with the three girls often leading to comedic misunderstandings and emotional revelations. The story also delves into the backgrounds of the female characters, providing depth to their personalities and motivations. Through its exploration of love and relationships, "True Love Tricolore" offers a multifaceted portrayal of young romance, capturing the joys and challenges of navigating love in a high school setting.