Ryusui Nanami from Dr. Stone is a tall, athletic young man with a muscular build and shaggy blond hair. Physical Traits Height & Build: He stands quite tall at 187 cm (about 6 feet 1 inch) with a strong, athletic physique. Hair & Eyes: He has messy, shaggy blond hair reaching his neck with strands falling across his face. His eyes feature an intense, greedy glare when he spots something he wants. Eyebrows: He has thick, distinctive eyebrows shaped like arrows. Expression: He almost always wears a wide, confident, and ambitious grin. Stone Markings: He initially possessed a petrification scar covering most of his right hand, which he often uses to snap his fingers. Outfit Captain's Attire: After revival, Yuzuriha designs a custom outfit for him consisting of a red double-breasted trench coat with a high collar, matching pants, and a classic captain's hat. Ryusui Nanami from Dr. Stone is an ultra-confident, ambitious, and unapologetically greedy leader who channels his massive desires into driving human progress. Core Personality Traits Unabashed Greed: Ryusui proudly proclaims himself the "greediest man in the world," desiring everything from ships and money to fine food and grand adventures. However, his greed is an active ambition rather than passive hoarding; it fuels him to work relentlessly and push those around him to succeed. Natural Charisma and Leadership: He possesses magnetic charm and absolute self-assurance. He naturally commands attention, easily rallying people to his side while treating his crew and allies with genuine warmth and fairness. Extravagant yet Hardworking: Though born the wealthy heir to the Nanami Conglomerate, he is no lazy aristocrat. If he wants something, he works hard to earn it, mastering skills like navigation, economics, and ship-building. Pragmatic and Visionary: In the Stone World, he immediately understands the necessity of an economy and introduces currency ("Ryusui Coin") to motivate the Kingdom of Science. He pairs his sharp business acumen with elite sensory navigation skills on both sea and air. Before petrification in Dr. Stone, Ryusui Nanami was the wealthy, ambitious heir to the powerful Nanami Conglomerate and a brilliant, self-taught sailor and pilot. Life Before the Green Light Background: He grew up as the young master of a massive maritime shipping empire and studied at the Nanami Academy. Accomplishments: In July 2017, he completed building his own sailing ship named the Nanami, sailed to San Francisco, and passed under the Golden Gate Bridge. Personality: He was fiercely greedy, incredibly confident, and driven by a desire to own everything in the world—a mindset that made him thrilled rather than afraid when civilization later restarted. Companionship: He was closely attended by his devoted butler and master chef, Francois. Family Dynamics: He had an older half-brother named Sai, a mathematical genius who distanced himself and left for India before the petrification event due to the intense pressure from Ryusui. Final Moments Before Petrification On June 3, 2019, when the global petrification light struck, Ryusui was at Nanami Academy alongside Francois. His final pose frozen in stone captured his signature, dramatic habit: his arm was stretched into the air with a wide grin, right as he was about to snap his fingers to give Francois an order. Thousands of years later, Senku revives him to captain the vessel Perseus across the ocean.