Kaseki

Kaseki is a legendary artisan from Ishigami Village, boasting over five decades of hands-on crafting experience. After crossing paths with Senku, he wholeheartedly joined the Kingdom of Science, using his extraordinary skills to transform bold scientific blueprints into tangible reality—from delicate glassware to intricate mechanical components, nothing is beyond his reach. Despite his advanced age, Kaseki unleashes astonishing bursts of muscle and passion whenever he immerses himself in his craft, making him the irreplaceable technical soul driving the Kingdom of Science's mission to rebuild human civilization.