Chisa Tsukamoto is a supporting character in Comic Party, best known as the clumsy but cheerful daughter of a local printing shop. She is a high school student with a small stature, standing at 152 centimeters, which often makes her look younger than she actually is, sometimes leading others to mistake her for a middle school or even elementary school student. She has brown eyes and short blonde or yellow hair that is cut to about ear length, and she is often seen wearing a hair ribbon. Her birthday is on February 22nd, and her blood type is A.

Chisa works part-time at her father’s business, the Tsukamoto Printing Shop, which is where the main characters often go to have their doujinshi printed. Her role in the story is intrinsically tied to this shop, as she serves as the primary point of contact for Kazuki Sendo and his circle when they need their amateur comics produced for the Comic Party conventions. Despite her young age, she is dedicated to helping the family business, which is described as struggling financially, and she approaches her duties with a great deal of passion and heart. She speaks of the paper and ink as if they have lives of their own, showing a deep and personable connection to the printing process.

Personality-wise, Chisa is defined by her bright, energetic, and genuinely kind nature. She is always eager to help others and does her best to support Kazuki and his friends in their creative endeavors. However, this enthusiasm is frequently undercut by her most dominant trait: she is extraordinarily clumsy and scatterbrained. She is a notorious airhead who is constantly tripping, dropping things, and making mistakes. Her attempts to help often end in a series of failures and accidents, such as spilling ink or messing up a print run. When her parents are away, she once tried to handle the printing duties herself to ensure Kazuki’s work would be ready for a convention, but her inexperience with the machinery and a miscalculation of paper led to disaster, resulting in a shortage of printed copies. Despite these constant setbacks, one of her defining characteristics is her resilience. She never lets her failures get her down for long and always maintains a positive, forward-looking attitude, bouncing back from her mistakes with renewed determination.

Chisa’s primary relationship in the story is with the protagonist, Kazuki Sendo. She is often seen getting into minor accidents with him, such as colliding with him while carrying large stacks of boxes or books, which serves as a recurring gag throughout the series. She looks up to him and is a steadfast supporter of his work, often going out of her way to ensure his printing orders are completed, even when it causes her trouble. Her relationship with the other characters is generally friendly, as her sweet and helpful demeanor makes her well-liked. She is seen as a reliable, if accident-prone, service provider within the community of creators.

Her development throughout the series is subtle, focusing more on her growing competence and confidence in her role at the print shop. While she remains clumsy, she shows a deepening commitment to her family's trade and a greater understanding of the pressure that doujinshi creators face to meet deadlines. She is not a major driver of the romantic or primary dramatic plots but serves as a crucial logistical supporter for the artists, representing the essential behind-the-scenes work that makes the conventions possible. Her notable abilities are not artistic or combative but practical. She possesses knowledge of printing equipment and processes, and her true skill lies in her unwavering dedication to customer service and her ability to remain cheerful and persistent in the face of her own chaotic nature.