The Tsukasa Empire or the Empire of Might was a civilization made up of Pre-Petrification Humans freed by Tsukasa Shishio.


Following his supposed murder of Senku Ishigami, Tsukasa used his knowledge of the revival formula to create a new Kingdom.

The renowned officers are Ukyo Saionji, former JSDF Navy Submarine Operator that has sensitive hearing, Hyoga, who later backstabbed (literally) Tsukasa, Homura Momiji, Hyoga's most trusted retainer, and Minami Hokutozai, who has abundant of information about famous people.

In Chapter 78, the empire lost to the Kingdom of Science upon Senku's invention of dynamite as a method of forcing a stalemate. In Chapter 82, the empire's dissolution followed after Tsukasa's defeat and Hyoga's capture, and the faction merged with the Kingdom of Science.

Since the merge, the actual location has been turned into a larger research facility. At the top of the structure is a meeting room for the Five Wise Generals. Near it is a room where Senku and Chrome work on fine-tuning crucial chemicals and components. Another room is Yuzuriha's workshop, where she rebuilds the smashed statues and makes clothes. In addition, spare rooms are used to store materials.

Former Members of Tsukasa Empire

Yo Portrait


  1. Reboot: Chapter 8; Page 3
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