Tsukasa Shishio

Tsukasa Shishio was turned into a stone statue by the same mysterious beam of light that changed all other modern humans into stone over 3000 years ago. Before the Stone World, Tsukasa was a famous MMA fighter, being known as 'The Strongest Primate Highschooler'. When Tsukasa was freed from the stone by Senku Ishigami and Taiju Oki, he promised the two of them that he would be their protector and wouldn't let any harm come to them. This later proved to be an ironic statement, as Tsukasa quickly became Senku's enemy once he learned that Senku wanted to revive all of humanity. Tsukasa was one of the biggest obstacles of Senku and his Kingdom of Science. In order to create a new world free from corruption, Tsukasa wanted to prevent the revival of elders, he wanted to prevent Senku from restoring humanity as a whole and establishing a scientifically advanced civilization. Tsukasa formed his own society known as the 'Kingdom of Might', comprised of strong warriors to further his agenda. However, he later came to a stalemate, forming a truce with Senku after Senku promised to save Tsukasa's sister Mirai, who was terminally ill before the petrification. Tsukasa reaffirmed his promise to never again let Senku be harmed, ultimately defeating the traitorous Hyoga. Hyoga mortally wounded Tsukasa, but Tsukasa's life was saved by Senku, the latter placing him in a cryogenic sleep. Later, Tsukasa's life was saved by Senku by de-petrifying him from his cryogenic state. Tsukasa ultimately joins the Kingdom of Science. He channels his ideals differently, yet he still strives for a morally pure world without exploitation of the innocent. Tsukasa is a very tall and muscular young man with wild, brown hair that he has been growing since childhood with bits of stone near the ends, and pale skin. He has an androgynous face and is stated to be handsome, though he often wears an intimidating frown on his face. His height is 195 cm. He has three stone markings: one across his face that cuts across his right eye, another etched deep into his left one from the corner of his eyelid all the way down across his nose and ends at the bottom of his jaw on the right, and the third being stretched across from his left shoulder over his chest and stopping at his upper abdomen. Tsukasa is essentially violent, but extremely careful and aware of his actions. He is a very kind, thoughtful, and polite man outside of his pessimistic ideals towards humanity. He offers help after being revived by Senku and Taiju, becoming their hunter for food and using his athletic skills to aid them. Tsukasa reveals to Senku that he plans to purge humanity and thinks Senku will go along with him, but Senku rejects him. At this point, Tsukasa becomes fairly determined in carrying out his plans even to the point of leaving their group. Tsukasa has confessed to Senku that he doesn't care about anyone but himself, though later it's revealed that Tsukasa loves his sister Mirai more than anything in the world, and that's where his resilience comes from so he can save her. Though Tsukasa revealed that Senku could've been his first friend pre-petrification, Tsukasa shut himself off from others during that time and only focused on saving his sister. Outside of Tsukasa's goals, he is naturally withdrawn. He tends to hate humans who control and manipulate others. By his actions, it's possible to assume that Tsukasa hates any hierarchy or practice of power. Before being saved by Senku, Tsukasa's goal is to create a society without technological advancement and he uses any means to achieve that objective; creating his own empire modeled on his own narrow views of humanity. More specifically, a world without addictive drugs, guns, nuclear and chemical weapons. When Tsukasa was first revived, he broke a stone statue and showed no remorse, continuing to crush more. He particularly goes after older adults and elderly people, but specifically leaves children alone, which can be related to his personal background and history of being assaulted and abused by those in authority. Tsukasa also ends up taking Taiju's friend Yuzuriha hostage in order to gain the Revival Formula from Senku. Tsukasa also by no means wants to resort to fighting or killing, but will do so if he feels pressured or his vision for humanity is at stake. This is seen when he ended up 'killing' Senku after sharing a tender moment of wishing they could've met 3,700 years earlier. Tsukasa has a code of respect which he abides by. He claims that even when killed in self-defense, a lion's meat should not be put to waste, thereby respecting it and the cycle of life. He also has no intention of making anyone suffer, and when forced to kill, he kills as quickly and painlessly as possible. Since his second revival, Tsukasa has mellowed out, now loyal to the Kingdom of Science. Tsukasa forgives his former Kingdom of Might for turning on him. He even respects Ryusui Nanami a bit, having eavesdropped on the man's explanation on how he sees money not as a way to control humans, but a small factor in helping bring together others to bring out the best in humanity. Tsukasa has explained that his new role in the Kingdom of Science is, upon everyone's revival, to prevent the corruption that he once tried to destroy at the source from tainting the world of science that Senku will build.