At a permanent stop of 150 centimeters, the world is simply built on a larger scale. For the protagonist, a petite woman living in Tokyo, this reality translates into a daily routine of reaching for high shelf items with a leap, adjusting car mirrors to their lowest possible angle, and fearing she might drown in a sea of salarymen during rush hour commutes. This is the central premise of the essay manga, which chronicles the humorous frustrations and unexpected advantages of navigating life from a low-angle perspective.

The story is set primarily in modern Japan, following the daily life of the author’s self-representation, a single woman who moved from her hometown to the bustling capital. The conflict is not an external villain but a gentle, comedic struggle against a physical environment designed for taller people. This includes the anxiety of standing in the middle of a packed train where handrails are just out of reach, the struggle of using a floor mop that is taller than she is, and the challenge of maintaining a professional appearance when business suits require significant alterations.

While the narrative is largely episodic, specific arcs provide structure. The first volume establishes the basics, detailing her "past history of 150cm," the ordeal of using public transportation, and a practical fashion lecture on how to dress without looking like she is playing dress-up. A later volume introduces a specific "with 170cm" arc, exploring the social dynamics and visual differences when she interacts with a much taller friend.

The series consistently uses a comparative lens to build narrative arcs. An "Obtuse Triangle Life Interview" section contrasts her reality with individuals of extreme physical attributes, such as a 175cm person, a 130kg person, or someone with a 48cm shoulder width, to highlight the relativity of "normal". The narrative also extends beyond national borders. A notable arc involves a trip to the Netherlands, a country known for having the tallest average population in the world. This journey transforms basic sightseeing into a surreal adventure, where she finds telephones hanging too high, toilets that feel like furniture, and a sense of being a perpetual child in a land of giants, only to eventually discover the comfort of finding "150cm allies" at a local petting zoo.

Throughout the series, maintaining a cheerful and optimistic outlook serves as the connecting thread. She acknowledges that while the world is inconvenient for her, people often go out of their way to help her, leading to a philosophy of "standing on tiptoes to live positively". The narrative follows her as she learns to shop for alterations, customizes her living space, and participates in activities like rock concerts or swimming pools, always finding a workaround for her lack of stature.