Dr. STONE manga volume 13 features story by Riichiro Inagaki and art by Boichi.

Kohaku plans to fool the island's ruler in order to infiltrate his harem and steal the petrification weapon, but first Senku and the gang need to retrieve the mobile lab to give Kohaku a total scientific makeover. However, the island’s fiercest warriors have taken over their ship, so the Kingdom of Science might need a little help to pull off this heist!