"My Awkward Senpai" is a slice-of-life romantic comedy manga centered around the workplace dynamics between two colleagues, Shinozaki and Kazama. Shinozaki, a reserved and diligent new employee, finds herself paired with Kazama, her socially awkward and clumsy senpai. Despite his seniority, Kazama struggles with basic social interactions, often leading to humorous and endearing situations. The story explores their evolving relationship as Shinozaki gradually becomes more attuned to Kazama's quirks and begins to appreciate his genuine, albeit awkward, nature.

The narrative unfolds in a typical office setting, with the mundane routines of work life serving as a backdrop for the characters' interactions. Kazama's inability to navigate social norms creates frequent misunderstandings, but his earnest efforts to improve and connect with others highlight his underlying kindness. Shinozaki, initially frustrated by his ineptitude, starts to see past his awkward exterior and develops a growing fondness for him. Their relationship progresses through a series of small, everyday moments, from shared lunches to collaborative projects, showcasing the gradual deepening of their bond.

Supporting characters, such as their coworkers and supervisors, add depth to the story by providing additional perspectives on Kazama's behavior and Shinozaki's reactions. These characters often serve as catalysts for key developments, pushing the main duo to confront their feelings or misunderstandings. The manga balances humor with heartfelt moments, capturing the nuances of workplace relationships and the challenges of communication.

Themes of personal growth, empathy, and the importance of understanding others are woven throughout the narrative. Kazama's journey to overcome his social awkwardness and Shinozaki's growing patience and affection for him form the emotional core of the story. The manga's lighthearted tone and relatable scenarios make it an engaging exploration of human connections in a professional environment.