꒰Senku Ishigami꒱⁠˖⁠♡

Ishigami Village is located on two small peninsulas in a large lake surrounded by mountains. One peninsula is covered in huts with a path leading down to a few boats, while the other houses the village chief's house and the makeshift stadium for village games.

The village is home to several key characters, including Chrome, Kohaku, Ruri, Ginro, and Kinro.

Kohaku, Kinro, Ginro, Magma, and Kokuyo defend the village. (Chapter 47, Page 16)

Later, the village becomes a Science Operations Base so that Senku can redevelop lost technology. The steam engine, telephone wire, and katana were all developed here.

In the Stone World, he switched to wearing animal‑skin clothing in a rudimentary way. After Yuzuriha’s de‑petrification, he gets a redesign of the outfit. He still wears the same animal skin, but this time in a caveman‑style, better‑patched garment. Albert Einstein’s mass‑energy equivalence formula (E = mc²) is printed on the front of his clothing, serving as a “motto.”

Senku Ishigami is a young man of average build. His signature hairstyle features two bangs crossing his eyes, and the rest is sprayed out, like a plant. His hair is light, dirty blonde with tips that fade into a dark green hue. He has red eyes. 171.4cm tall

Senku is perseverant in his efforts, having worked alone for six months initially to create the de‑petrification elixir. He also has the habit of saying “ten billion possibilities” as his catchphrase when he is certain of something. He loves science and especially enjoys creating new inventions. He will also use his achievements and inventions to win people over, such as recreating ramen from scratch to earn the help of some villagers in his iron‑making process. He tends to be deceptive and blunt in his opinions, which irritates some of his friends and makes him a terrible negotiator. Nevertheless, his intelligence, charisma, and compassion for his friends allow him to gain many allies and even sway some of his enemies, especially Tsukasa.

Senku has an exaggerated attitude that shows up as comedy and leadership. He is self‑confident and can back it up. Even so, he never lets his confidence cloud his judgment or belittle those around him. Instead, he serves as a source of encouragement and inspiration for everyone nearby. Because of his wit and affectionate nature, people tend to gather with his colleagues and supporters alike. Although he has a strong sense of justice, he does not let rules dictate his actions and can sometimes be cunning to get what he wants. He often acts as if he is building inventions and using people for his own interests and in the name of science, but beneath his arrogance and manipulative side lies a genuinely kind heart.

He opposes Tsukasa, declaring that he would use science to save the seven billion petrified people. In a flashback, when asked whom he would choose to save—himself, his friend, or his lover—he replied that he would find a way to save everyone. He proves this when he “sacrifices” himself to rescue his friend Yuzuriha from Tsukasa, even revealing the ingredients and process for the de‑petrification elixir to Tsukasa.

Similarly, he built a car with the express purpose of transporting elderly people with limited mobility, despite claiming it was for a faster trip to the enemy’s headquarters. He even voluntarily walked into an obvious trap set by Tsukasa to save Chrome (since Tsukasa knew Senku would never abandon his friends), although Chrome managed to escape on his own.

Senku firmly believes in science, convinced that there is nothing science cannot solve, but he also sees science as an ongoing process that is a painstaking effort to understand the rules behind phenomena. He refuses to lie about anything related to science; when Tsukasa asked if Senku would promise to stop pursuing science and not be killed, Senku flatly refused. He will never lie about the capabilities of science (partly because of his straightforward personality).