Kohaku is depicted as a dynamic, battle-ready figure from Dr. Stone, standing proudly at 200 millimeters tall. The sculpt highlights her long pink hair, swept back in wind-swept strands that frame a determined expression. She wears the series’ iconic armor-inspired attire with layered red and white plates, subtle weathering, and carefully painted accents that emphasize buckles and fabric folds. The pose conveys readiness and courage, with a hint of motion that suggests she’s about to strike. The detailed base carries Ishigami Village motifs, and the overall finish relies on precise painting to convey depth, shadows, and the character’s resilient spirit.

In the Dr. Stone universe, Kohaku is introduced as a formidable Ishigami Village hunter and a loyal defender of her people. She initially regards outsiders with caution but quickly becomes a trusted ally of Senku and his science-driven mission to rebuild civilization. Her courage in the face of danger, resourcefulness in combat, and readiness to learn new techniques help the group survive wars, earthquakes, and the harsh prehistoric environment. Kohaku's personal arc centers on balancing pride and trust, as she witnesses how knowledge and collaboration can restore technology, medicine, and culture. Her leadership qualities emerge in moments where village safety depends on quick decisions, teamwork, and sacrifice. Through trials, Kohaku evolves from a wary warrior into a strategic partner whose spirit embodies hope, resilience, and the belief that science can triumph over fear.