Chrome

Chrome (クロム, Kuromu) is the sorcerer (eventually scientist) of Ishigami Village and Senku's friend. Originally a rival, he grew close to Senku as the depetrified human taught him the art of science. Chrome is an average-sized young man with brown eyes and spikey, light-brown hair with a rope tied around his head like a headband. He sports a blue. Chrome is a young man of average height and possesses a rather frail build. He has spikey, light-brown hair that he keeps out of his eyes with a rope-like headband. His usual outfit consists of a short-sleeved, dark blue shirt, matching pants, a rope belt, and sachels that contain materials he's collected. Sometimes he will also dawn a cape that matches the color of his outfit as well. Chrome is a high energy person with a lot of passion and curiosity. He is genuinely interested in science, although at first he only knows it as a sorcery. Chrome is confident in his intellect, enough so to go toe to toe with Senku despite getting destroyed in a battle of wits. Chrome cares little about the age when it comes to friendships, as he considers Kasaki as one of his greatest friends even though he's more than 50 years older than Chrome. He also has a tendency to refer to something as "bad" when he thinks it is cool or amazing. Chrome has a deep love of science, though he admits his expertise and knowledge lies mainly in exploration, particularly pertaining to rocks and minerals and gathering them.

He even becomes offended when Ryuusei refers to himself as a pro adventurer while he refers to Chrome as an amateur. He is loyal to his friends and while lacking in physical abilities (quite similarly to Senku) he is still able to think of clever solutions out of dangerous situations. Chrome is also exceedingly brave and loyal, managing to withstand Tsukasa's torture and death threats and refusing to speak about Ishigami Village or the progress of Senku's inventions. In addition, while the normal loudmouth, he knows when to keep his mouth shut. He loves science and in many ways is an accomplished scientist in his own right, managing to create chemical reactions from the rocks he collected through frequent trial and error (reactions which were only made known in the seventeenth century) despite never knowing this knowledge beforehand and before Senku's arrival. In addition, he is naturally inquisitive and loves helping make inventions. When he was left out of making the automobile, he was notably disheartened. When he managed to ride a hot air balloon for the first time, he was both amazed and frustrated by the progress of the modern era prior to petrification and wanted to learn more of the world. Also in spite of his naivety when it comes to the outside world, he is shown to be wary of those he distrusts, evident when he did not trust him and Senku being alone in a cave with Magma as he believed Magma would attempt to murder them.

Chrome is selfless especially when it comes to his friends, as he entered the village tournament that would determine Ruri's husband so Magma would not win (as he would ensure she did not survive her illness) and knew Kinro or Ginro would have better chances of winning but did not mind who married her so long as she would be cured. He has strong feelings for Ruri but as stated by Kohaku he doesn't seem aware of his own feelings. Though at first threatened by the arrival of Senku, another "sorcerer", the two quickly become close friends due to their mutual love of science and becomes Senku's main ally and confidant in Ishigami village (aside from Gen) when it comes to their plans and inventions as the three often use their science and manipulation to find ways of creating a bloodless war against Tsukasa's Might of Empire and later to go against the Whyman. Compared to the rest of Ishigami Village, Chrome is rather intelligent and curious. He was labeled as the village sorcerer due to his ability to use the materials around the village for "magic". He also has slightly-above average skill in arithmetic, only considered an expert at it due to no one knowing better. It's confirmed by Riichiro Inagaki that Chrome would have high grades and tie with Tsukasa in a school setting. While no match for the likes of Kohaku, Chrome does possess some skills in combat and managed to hold his own against Mantle. He also managed to pole vault his way around Tsukasa's traps (as he often pole vaults to gather his materials). Tsukasa himself noted that if he went on a voyage he would more likely choose Chrome or Senku despite Senku's superior intellect because Chrome seems to be more physically fit and stronger. Since he was young, Chrome has always enjoyed collecting things and would store them in a tower. He would mix, smash, and burn the things he found and labeled any reactions as sorcery.