: This episode features the first major involvement of Suika , the "Great Detective," who uses her watermelon helmet to spy on the villagers and identify ramen as their greatest desire. Episode Overview Information Title "Stone Road" Primary Invention Foxtail Millet Ramen Scientific Goal Creating sulfa drug antibiotics Key Characters Senku, Chrome, Kohaku, Suika Streaming Available on Crunchyroll and Apple TV .
: To forge iron for their equipment, they need temperatures reaching 1,500°C. Their manual air-pumping system leaves them exhausted and short on manpower. The Solution: Ramen : Dr. Stone Episode 8
: Senku, Kohaku, and Chrome begin the "Stone Route" to create sulfa drug antibiotics to cure Ruri, the village priestess, who is suffering from a severe illness. : This episode features the first major involvement