Tsukasa Shishio

Tsukasa Shishio is a prominent character in the Dr. Stone anime, initially introduced as a major antagonist during the early arcs (particularly the Stone Wars saga).

In terms of appearance, he's depicted as an extremely tall (around 195 cm / 6'5") and heavily muscular young man with long, wild brown hair, pale skin, and striking features often described as handsome and somewhat androgynous. He typically has an intimidating or serious expression, and his body bears distinctive stone remnants from the petrification (markings across his face and chest).

Personality-wise, Tsukasa is calm, composed, highly intelligent, and physically dominant—he's known as the "Strongest High School Primate" due to his exceptional martial arts skills and raw strength (capable of feats like one-punching a lion). He's thoughtful and polite in demeanor but holds a deeply cynical view of the pre-petrification adult world, seeing it as corrupt and rotten. This drives his vision for a "pure" new world built only by the young and strong, leading him to oppose Senku's goal of reviving all humanity and rebuilding civilization through science. Despite his antagonistic role early on, he's shown layers of protectiveness toward those he values and a sense of fairness in his own way.