Kohaku

Overview

Kohaku is a central heroine in the manga series Dr. Stone, created by Riichiro Inagaki and Boichi. Born in Ishigami Village in the post-petrification world, she becomes the very first ally of Senku Ishigami. Serving as the primary combatant and spearhead of the Kingdom of Science's physical force, she plays an essential role in defending her companions and advancing their mission to rebuild civilization. With her exceptional athleticism and resolute martial capabilities, Kohaku stands as one of Senku's most dependable partners throughout their global and space-bound journeys.

Appearance

Kohaku is an attractive young woman with golden-blonde hair and bright blue eyes. Her long hair is tied into a high ponytail using a band, complemented by uneven bangs around her face. She possesses a lean, athletic build with a voluptuous figure. Her signature attire is a short, sleeveless navy dress featuring deep petal-like slits along the hem, paired with a waist belt, fur neck wraps, and durable sandals. Beneath her dress, she wears a traditional fundoshi cloth.

Personality

Kohaku is fiercely righteous, pragmatic, and speaks in an archaic, formal manner. Though tomboyish and blunt, she is deeply compassionate toward her loved ones and loyal to her companions. She makes an effort to grasp complex scientific ideas in her own way, often exclaiming a brief sound of comprehension when she reaches an answer. She reacts furiously with expressive facial reactions whenever insulted with animalistic nicknames. Although quick to jump into action during emergencies, she possesses remarkable composure and analytical judgment under high-pressure scenarios.

Abilities

Kohaku possesses top-tier physical agility and leg strength, engaging opponents with speed and acrobatic movement comparable to a gymnast. She boasts heavy raw strength and sharp martial skills, wielding paired stone daggers, katanas, and combat knives over time. Her most remarkable attribute is her phenomenal 11.0 visual acuity, which grants her supreme scouting abilities and unmatched focus when extracting key details from images. Additionally, she holds basic arithmetic capability.

Background

Raised in Ishigami Village as the daughter of Chief Kokuyo, Kohaku dedicated her youth to saving her sickly older sister, Ruri. Refusing to inherit the priestess title so Ruri would maintain her will to live, Kohaku climbed mountains daily to carry heavy jars of hot spring water, fracturing her relationship with her father. Her life changed when she witnessed Tsukasa Shishio fight Senku Ishigami; after Senku rescued her from a fallen tree using pulleys, she aligned with his vision and became the first citizen of the Kingdom of Science. After curing Ruri, she served as a key vanguard in expeditions across the globe and beyond.

Relationships

Kohaku holds deep respect for Senku Ishigami, admiring his resolute spirit and serving as his faithful vanguard. Her devotion to her older sister, Ruri, drove her choices throughout her youth. Although her refusal to succeed the miko position strained her bond with her father, Kokuyo, they share strong familial blood. She maintains a friendly, bickering friendship with Chrome. Initially confronting Tsukasa Shishio as a terrifying foe, she later trained alongside him, refining her combat skills to match legendary modern warriors.

Trivia

Her name, Kohaku, translates to amber, referring to fossilized tree resin. The extraordinary muscular endurance and agility she exhibits throughout the series were inadvertently developed through her arduous daily chore of carrying nearly fifty liters of hot spring water up and down steep terrain to treat her sister's illness.