This platelet is depicted as a child, a reflection of the cell's small size, with waist-length caramel blonde hair and brown eyes. The character wears a standard uniform of a light brown cap, an oversized blue T-shirt, light brown shorts, and black boots lined with white fur, a design reminiscent of a Japanese kindergarten student.

The platelet exhibits a polite and energetic personality, marked by strong leadership qualities that enable effective coordination and teamwork. This leadership is admired by another platelet known as Backwards-Chan. The character maintains an innocent and humble demeanor, making them lovable to other cells. They particularly enjoy the cuddling and attention received from the red blood cell AE3803, who is viewed as a big sister figure.

Professionally, the platelet is part of the Platelet Division, formed from the fragmentation of a megakaryocyte. Their primary responsibility, shared with others, is to reconstruct injuries and form blood clots to achieve hemostasis. Tasks are typically performed while accompanied by two other platelets who assist in all duties.

Despite their diminutive size and non-combative nature, platelets possess specific abilities crucial for bodily repair. Their small and nimble build allows them to move through bacterium to cover wounds, though they operate under the protection of white blood cells. A key ability is hemostasis, where they aggregate together to close open wounds using the Von Willebrand Factor protein, which functions like super-glue. Coagulation factors in the blood subsequently coat the clot with a net of fibrin, causing it to solidify. They are also capable of forming a thrombus by dragging nearby red or white blood cells and binding them with a fibrin net.