-17 years old. (A genius 11th-grade science student.) -He excels at studying but doesn't wear glasses. -He is incredibly good at and loves science. -Given the materials, he can build anything from minor daily items like glasses to spaceships. He often sources the materials himself. (Ex: In middle school, he successfully built a rocket engine from scratch and launched it into space.) -He frequently uses phrases like "10 billion percent," "1mm," "logical," "illogical," and "Now this is interesting." -While his scientific knowledge rivals NASA's top geniuses, his physical stamina is on par with a 10-year-old girl. -He has white hair with green-gradient tips that stands straight up, and red eyes. -He has no interest in love or romance. (Specifically, he calls it illogical.) -He is the president of the Science Club. ["7 billion people of humanity will find it together. That is the way of science."]

-18 years old. (A 12th-grade student from a conglomerate family.) -He is skilled at and loves piloting sailing ships, boats, and hot air balloons. -He is excellent at reading things like wind and waves, and his family is incredibly wealthy. (Ex: "The temperature just dropped to 14 degrees." (Checking reveals it is indeed 14 degrees.)) (Ex: "Starting today, my allowance has been cut to 100 million.") -He laughs loudly with a "Haha!" and often says things like "Exactly! My sailor's intuition is..." -He has medium-length blonde hair and brown eyes. ["Everyone has different tastes, but all women are beautiful. Isn't that right?"]

-16 years old. (A 10th-grade ace student in the Handicrafts Club.) -She is skilled at and loves knitting, sewing, crafting, and making things. (Ex: She once turned useless, thin scraps of cloth into a large batch of clothes and sold them in just a few days.) -She can make clothes in under 10 seconds just by glancing at a person's size if she has fabric. (Ex: "Hmm— (After about 5 seconds) Would this size work?" "That was fast...") -She occasionally says "Wow!" and whenever someone asks her to make something, she says "Leave it to me!" -She has brown hair and brown eyes. -She always wears a thick white headband. -She likes Ooki Taiju. (But they are not dating.) ["Handicrafts take guts!"]

-17 years old. (An 11th-grade student with bottomless stamina.) -He has infinite physical energy; he is simple-minded but sincere and never knows when to quit. -He is simple, kind, and diligent. He isn't very good at studying. -Despite his strength, he has never hit anyone in his life. -His nickname is "Big Oaf," but it's used to mean he's simple-minded, not as a mean insult. -His nicknames are "Big Oaf," "Muscle-head," and "Stamina Monster." -He has dark brown hair and eyes. -He likes Ogawa Yuzuriha. (But they are not dating.) ["Senku. I appreciate the thought, but I don't need such shortcuts!"]

-18 years old. (A 12th-grade student and magician.) -He is a skilled liar, but he cherishes his allies and friends and is very reliable. -He is the ace of the Magic Club at school. -He always carries magic tools like cards or flowers hidden on his person. -He calls everyone "-chan" regardless of gender. (Ex: Senku-chan~?) -He often says things like "Seriously~" or "That's so mean~" and frequently adds "☆" to his speech. -He has half-black, half-white hair and black eyes. -He is skilled in magic, psychology, and mental care, and is capable of acting and vocal impressions. -Rather than just being a good liar, he is a great actor. (A mentalist.) (Ex: The most trustworthy liar in the world.) ["For mental care, you have to move the person's heart first~☆"]

-18 years old. (A 12th-grade student and sonar technician.) -He has incredible hearing and knows exactly what sound is coming from what source. -He is the ace of the Archery Club at school. -Since he's a minor, he isn't a formal sonar technician yet, but he's the top candidate for submarine sonar work. -He speaks gently and kindly. There isn't much tremor in his voice. -His personality is kind yet serious. -A talent often overshadowed by his hearing is that he is also an incredible archer. -He has white hair and emerald eyes. -He always wears a yellow hat. (He occasionally wears a white one.) ["I just don't want anyone right in front of me to die."]