Senku Ishigami's petrified statue drifted into the cave. The fluids dripping from the cave liberated him from his 3700-year-long stone prison. Senku then conducted tests and was successful in creating the Revival Fluid. Senku then freed his best friend Taiju Oki.
Some months later, the pair released Tsukasa Shishio, who had a new agenda for the reborn world. With him threatening his friends, Senku gave up the cave and the formula.
The cave was under control of Tsukasa and his new Empire that consisted of at least one-hundred people.
|Nations||Kingdom of Science • Tsukasa Empire • Petrification Kingdom • American Colony|
|Settlements||Ishigami Village • Treasure Island|
|Landmarks||The Great Buddha of Kamakura • Cave of Miracles • Camphor Tree • Hiromi College • Hirosue High • Roppongi Hills Mori Tower|