Having successfully reinvented the phone, Senku contacts Taiju and Yuzuriha, setting his plan in motion to win over Tsukasa's allies. But in a kingdom where might makes right, not everyone will be swayed by mere words, and some of the people on Tsukasa's side are not to be trusted - even by Tsukasa himself. Still, with hard work and a whole lot of science, Senku and his friends are determined to win the Stone Wars and defeat the Tsukasa Empire once and for all!