Dr. Stone › Saison 1 Dr. Stone : Stone World

Chapter 18 — Episode 18

First, at a village celebration, Gen (the mentalist) is caught by Senku before he can report back. Gen reveals that Tsukasa's empire is mobilizing — once enough fighters are revived, they plan to attack the village by force. Senku reacts with excitement rather than fear, declaring it a full-scale war between the Kingdom of Science and the Empire of Might. Then, the attack begins sooner than expected: Hyoga, a highly skilled spear-user recently revived by Tsukasa, leads an advance force to the village. Kinro holds the bridge alone to protect the residential area, but is overwhelmed by Hyoga's superior technique. Back at the village, Senku treats Kinro's wounds using sulfa drugs he had produced as a byproduct of his earlier work, and the medicine heals Kinro overnight. Senku deduces that the enemy will wait for a storm — when the village's matchlock guns would be useless — to launch their full assault, and mobilizes all of Ishigami Village to prepare scientifically before the storm arrives. Finally, the storm hits and Hyoga's group attacks. Kohaku, Kinro, and Magma engage Hyoga in a three-on-one fight, but his rotating spear technique proves nearly impossible to counter — until the tip of his spear suddenly snaps off, sabotaged in advance by Senku. Hyoga realizes Gen has been a double agent all along. At the very end, Senku sends Suika on a secret mission to deliver something to Gen, guiding her through trail markers Gen left using a flower whose meaning is "liar," confirming Gen's true loyalty to Senku's side.