"Photo Kano" centers on Kazuya Maeda, a high school student who receives a digital camera as a gift from his father. Initially uninterested in photography, Kazuya begins to explore the hobby after being encouraged by his childhood friend, Haruka Niimi. As he starts taking photos of his classmates, Kazuya becomes more involved in their lives, leading to a series of romantic and interpersonal developments.

The narrative is structured around Kazuya's interactions with various female classmates, each of whom has a distinct personality and backstory. Haruka Niimi, a cheerful and supportive friend, harbors feelings for Kazuya but struggles to express them. Mai Sakura, a shy and reserved girl, becomes one of Kazuya's early subjects, and their interactions gradually deepen. Nonoka Eno, a confident and outgoing classmate, challenges Kazuya to step out of his comfort zone, while Rina Takasaki, a mature and composed upperclassman, offers guidance and a sense of stability. Other characters, such as the energetic and mischievous Tomoe Shinjou and the enigmatic transfer student Hitomi Sase, further complicate Kazuya's relationships.

As Kazuya continues to take photos, he becomes more attuned to the emotions and struggles of those around him. The series explores themes of self-discovery, personal growth, and the impact of relationships on individual identity. Each character's arc is tied to Kazuya's journey, with his camera serving as a catalyst for meaningful connections and moments of introspection.

The plot unfolds in a slice-of-life format, blending lighthearted moments with more serious emotional undertones. Kazuya's evolving relationships with the female characters are central to the story, with each interaction contributing to his development as both a photographer and a person. The series balances romantic elements with a focus on friendship and personal challenges, creating a narrative that is both engaging and reflective of the complexities of adolescence.