"With You, the First Time" is a romance manga that explores themes of first love, personal growth, and the complexities of relationships. The narrative centers around two main characters, a high school boy and girl, who navigate their feelings for each other while dealing with the challenges of adolescence. The boy, initially reserved and introspective, begins to develop feelings for the girl, who is more outgoing and confident. Their relationship evolves through a series of interactions, misunderstandings, and heartfelt moments, capturing the awkwardness and sincerity of young love.

The story unfolds in a typical high school setting, with the characters engaging in everyday activities such as attending classes, participating in school events, and spending time with friends. These settings serve as a backdrop for the emotional development of the characters. The boy struggles with expressing his emotions and often finds himself overthinking his actions, while the girl, though seemingly self-assured, harbors her own insecurities and doubts about relationships. Their dynamic is marked by a gradual deepening of mutual understanding and trust.

Secondary characters, including friends and classmates, play significant roles in shaping the protagonists' journey. These characters provide support, create conflicts, and offer different perspectives on love and friendship, adding depth to the narrative. The manga also touches on themes of self-discovery, as both protagonists learn more about themselves and what they want from a relationship.

The plot progresses through a series of episodic encounters that build toward pivotal moments in the protagonists' relationship. Key events include confessions of feelings, moments of jealousy, and the challenges of balancing personal aspirations with romantic commitments. The story avoids overly dramatic twists, instead focusing on the subtle, relatable experiences of young love.

Artistically, the manga employs a clean and expressive style, with attention to facial expressions and body language to convey emotions effectively. The pacing allows for a steady development of the relationship, ensuring that the emotional beats resonate with the reader. "With You, the First Time" is a heartfelt exploration of first love, capturing the innocence, confusion, and joy that come with it.