Series & First Appearance
Kesshouban (血小板) is a character from the anime and manga series Hataraku Saibou (Cells at Work!). This series is created by Akane Shimizu and is animated by David Production. Kesshouban first appears in the manga in Chapter 2 and is notably present in various episodes of the anime adaptations, including Hataraku Saibou!! which aired in 2021.
Profile at a Glance
Kesshouban, translated as "Platelet," appears to be a child, symbolizing her youthful and energetic characteristics. As a supporting character, she plays a pivotal role in maintaining the health of the body, primarily through her duties in blood clotting. She is affiliated with other blood cells and is often seen working alongside red and white blood cells. Kesshouban’s signature ability lies in her capacity to collect and aggregate together with other platelets to form clots, a critical function for preventing excessive bleeding.
Personality & Motivations
Kesshouban is characterized by her cheerful and optimistic demeanor, embodying innocence and enthusiasm for her responsibilities. She often exhibits bravery when facing dangers within the body, reflecting her commitment to her role. Kesshouban holds a strong desire to contribute positively to the overall health of the body, driven by an earnest wish to help those around her. Notably, she has a catchphrase, "Let’s do our best!" which encapsulates her spirited approach to the challenging situations she encounters.
Abilities / Powers
Her primary ability is blood clotting, a vital process during injuries to seal wounds and prevent blood loss. Kesshouban can summon other platelets to form larger clots, showcasing her leadership and teamwork skills. Despite her skills, Kesshouban exhibits limitations in combat situations—she lacks offensive capabilities and has to rely on her surrounding support cells for protection and effectiveness during crises. This aspect of her character highlights the importance of collaboration in overcoming obstacles, as seen in different arcs of the series.
Major Story Arcs & Growth
Kesshouban’s story is significantly shaped during various encounters with harmful bacteria and other infections invading the body. In her debut chapter, she witnesses and participates in a minor but critical battle against intruders, symbolizing her entry into the broader narrative of fighting disease. In the Hataraku Saibou!! series, her character experiences growth through understanding the chaos within the human body, gaining confidence as she encounters various life-threatening situations. Her development is also marked by moments of fear, which challenge her self-confidence, but ultimately reinforce her resolve to protect the body.
Notable Relationships
Kesshouban has a close camaraderie with other blood cells, particularly her friendship with the red blood cells and white blood cells. Their collaborative efforts highlight the collective work done by various types of cells in maintaining health. Notably, her interactions with the red blood cell (aka AE3803) depict a mentor-student dynamic, where she learns important values surrounding teamwork and bravery. In contrast, her relationship with pathogens emphasizes her role in the body as a guardian against disease.
Iconic Moments & Quotes
Kesshouban has several memorable scenes that resonate with fans. One notable moment occurs during an emergency when she rallies her fellow platelets to work together to form a clot quickly, bravely facing a giant injury threat (Episode 4, Hataraku Saibou!!). Her inspiring call to action captures the essence of teamwork and determination. Another impactful moment is in the Kesshouban: Eigakan e Iku, where she faces off against an aggressive pathogen, showcasing her growth from a timid character to a brave protector. Her quote, “Let’s stick together!” serves as a powerful reminder of solidarity amid adversity.
Trivia & Behind-the-Scenes
Kesshouban is voiced in Japanese by Maria Naganawa, whose cheerful vocal delivery has helped to make the character endearing to fans. In the English dub, Xanthe Huynh presents a similarly energetic performance that captures the character’s essence. Kesshouban has become a fan favorite, reflected in her member favorites count, which stands at 452. Her design as a young, playful cell makes her relatable, and her role in Hataraku Saibou emphasizes the importance of teamwork in life, reflecting broader themes that resonate with viewers. Notably, Kesshouban also serves to educate audiences on the human body’s inner workings, blending entertainment with scientific education, a hallmark of Hataraku Saibou.
By combining her charm with her crucial role in maintaining the body’s health, Kesshouban stands out as a vital figure in the franchise, appealing to a broad audience with her blend of innocence and courage.







