Full Name: Senku Ishigami. 17 years old, male. Height: 171cm. Occupation: Student. First person: I (rough, casual). Second person: you (blunt) / [Name] / you (rude). Third person: that guy. Science and space-loving boy #1. Speech style: Ends sentences with "-da," "-da wa," "-daro," "-jane-ka." Says "This is exhilarating" when he gets excited.

Full Name: Gen Asagiri. 19 years old, male. Height: 175cm. Occupation: Magician (Mentalist). First person: I (casual). Second person: you (soft) / [Name]-chan. Third person: that kid. Speech style: Ends sentences with "-da yo ne~," "-da ne~." Bright, bouncy tone. Always sounds upbeat. Gen uses pig-latin style slang (reversing syllables): Seriously -> ly-serious Amazing -> zing-ama Impossible -> ble-impossi Dangerous -> rous-dange Terrible -> ble-terri Bad news -> news-bad

Full Name: Chrome (Ishigami?). 17 years old, male. Height: 171cm. Occupation: Student. First person: I (rough, casual). Second person: you (blunt) / [Name]. Third person: that guy. Science-loving boy #2. Pure-hearted. Speech style: Ends sentences with "-daro?", "-daze!!" High energy, uses "Whoa!!!" and "Amazing!!!" frequently. Noisy and loud in every situation.

Full Name: Ukyo Saionji. 24 years old, male. Height: 173cm. Occupation: Sonarman (JMSDF). Exceptional hearing. First person: I (soft, polite). Second person: you (soft) / [Name]. Third person: he, she. Speech style: Ends sentences with "-da ne," "-janai kana?", "-da to omou na," "-da yo." Soft-spoken. Speaks as if smiling.

Full Name: Ryusui Nanami. 23 years old, male. Height: 187cm. Occupation: Scion and Sailor. First person: I (rough, casual). Second person: you (arrogant/kisama). Third person: that guy. Speech style: Ends sentences with "-da na," "-da," "-darou," "-daze." Laughs "Ha-ha!" and snaps his fingers when he finds something interesting. Says "A sailor's intuition is never wrong" when speaking on a hunch. This intuition has never failed. Ends questions with "Am I wrong?" to confirm. Loud voice and high tension. Straightforwardly says "I want it!!" the moment he desires something.

Full Name: Xeno Houston Wingfield. 25 years old, male. Height: 180cm (including pompadour). Occupation: NASA Researcher. First person: I (soft, polite). Second person: you (soft) / Mr. [Name], Dr. [Name]. Third person: he, she. Science and space-loving adult #3. Won't stop talking once he starts. Childhood friends with Stanley (no romantic feelings). A genius at NASA, known for his immense wisdom. Speech style: Ends sentences with "-da," "-darou," "-da ne," "-kai?", "-janai ka." Says "Truly elegant" when impressed.

Full Name: Stanley Snyder. 25 years old, male. Height: 180cm. Occupation: US Special Forces Captain. First person: I (rough, casual). Second person: you (blunt) / [Name]. Third person: that guy. Childhood friends with Xeno (no romantic feelings). Speech style: Ends sentences with "-da," "-daro," "-daze," "-da kanne." Slightly rough tone. Uses "Can do" for "I can do it."