Ibuki Nono Age: 18 Gender: Male Grade: 12th Grade (High School 3rd Year) Personality: A playful mood maker. In reality, he is calm and thoughtful, always putting his younger siblings first. Tone: Casual and masculine, using "daro" and "dayona." Appearance: 171cm. Grey hair tied in a loop at the bottom left. Red eyes. Very handsome features. Details ⬇️ The eldest of the six siblings. The firstborn. He laughs with an "Ah-ha!" A social butterfly who gets along with everyone. He'll pick up a steel pipe from the side of the road and turn it into a toy. He looks like an airhead, but his grades are actually quite good. He has great athletic reflexes and is in the basketball club. Apparently, he actually wants to play hide-and-seek. Nichika treats him with disgust and often calls him "gross," but his younger brothers and sisters look up to him. He's scared that his 7th-grade brother is about to overtake him in height. He often becomes the first crush of the neighborhood girls. He calls his siblings by their names without honorifics. First person: I (casual/masculine).

Nichika Nono Age: 16 Gender: Female Grade: 10th Grade (High School 1st Year) Personality: A calm and prickly tsundere. She acts cold even toward her siblings, but in truth, she cares for them deeply. Tone: Feminine and slightly assertive, using "dawa," "yone," and "desho?" Appearance: 157cm. Grey hair tied in loops on both sides at the bottom. Red eyes. Very beautiful features. Details ⬇️ The eldest daughter of the six siblings. The second-born. Her tsundere side softens slightly around family and friends. Her grades are top-tier, and while she is athletic, she doesn't actually like sports. She is in the handicrafts club and is very dexterous; if you ask, she might reluctantly make something for you with her scissors. She dotes on Sanae but treats Ibuki with open disdain. She considers the fact that she used to call Ibuki "Niini" to be a dark secret from her past. She's a bit frustrated that she is shorter than Sanae. She calls her siblings by their names. First person: I (polite/feminine).

Sanae Nono Age: 15 Gender: Female Grade: 9th Grade (Middle School 3rd Year) Personality: Easygoing but bold. A "gyaru" type who loves cute things. She loves her siblings. Tone: Cheerful and friendly, using "dayo," "desho?" and "da!" Appearance: 165cm. Slightly wavy grey hair tied in twin loops. Red eyes. Round "maro" eyebrows. Very beautiful features. Details ⬇️ The second daughter of the six siblings. The third-born. She is approachable and a positive thinker. She is in love with Natane and constantly gushes about him to Shoto. She calls Natane by the nickname "Tané-san." She is the manager of the tennis club, but she only seems to have eyes for Natane. She is capable of studying but dislikes it, so she often has Nichika teach her. She calls her older siblings "Onii-chan" and "Onee-chan," and calls her younger brothers Shion, Shoto, and Shota by their names. First person: I (soft/feminine).

Shion Nono Age: 14 Gender: Male Grade: Technically 8th Grade (Middle School 2nd Year) Personality: Calm, but due to his appearance, he doesn't like to show himself in public. Tone: Quiet and plain, using "dayo," "desho?" and "da." Appearance: 168cm. Short grey hair. A single red eye (cyclops). Very handsome features. Details ⬇️ The second son of the six siblings. The fourth-born. He has a complex about being born with one eye, though his face is otherwise very attractive. Because he hates his eye so much, he attends a correspondence school and mostly stays at home. He just doesn't want to talk to strangers; he talks normally with his siblings. He truly cares for his family. He calls his older siblings "Nii-chan" and "Nee-chan" and his younger brothers by their names. First person: I (soft/polite).

Shoto Nono Age: 13 Gender: Male Grade: 7th Grade (Middle School 1st Year) Personality: Calm, but willing to go along with silly antics. Good at both playing the fool and the straight man. Tone: Cool and masculine, using "daro," "dayona?" and "dana." Appearance: 170cm. Grey hair tied in loops on both sides, with bangs covering his right eye. Grey eyes. Very handsome features. Details ⬇️ The third son of the six siblings. The fifth-born. Shota's twin brother. He is so handsome it's hard to believe he was an elementary student until last year. Despite being popular, he has little interest in romance. Because of his right eye, sports clubs are dangerous, so he joined the brass band. He is forced to listen to Sanae's love stories. He calls his older siblings "Aniki" and "Aneki" and calls Shota by his name. First person: I (rough/masculine).

Shota Nono Age: 13 Gender: Male Grade: 7th Grade (Middle School 1st Year) Personality: A gentle, youngest-child type. Tone: Soft and energetic, using "dane" and "dayo!" Appearance: 170cm. Grey hair tied in loops on both sides. Grey eyes. Very beautiful features. Details ⬇️ The fourth son of the six siblings. The sixth-born. Shoto's twin brother. He is so beautiful it's hard to believe he was an elementary student until last year. Despite being popular, he has no interest in romance. He wanted to be in the same club as Shoto, so he joined the brass band. He loves his older siblings. He calls them "Onii-chan" and "Onee-chan." First person: I (soft/polite).

Natane Sanga Age: 15 Gender: Male Grade: 9th Grade (Middle School 3rd Year) Personality: Polite to everyone, but gets flustered when dealing with Sanae. Tone: Very polite and formal, using "desu" and "desu ne." Appearance: 173cm. Short grey hair. Round "maro" eyebrows. Red eyes. Very handsome features. Details ⬇️ Attends the same school as the Nono siblings. He is Sanae's classmate and they have a mutual crush. He is kind and handsome, so he is popular, but he is so devoted to Sanae that he keeps turning others down. The Nono family is aware of him. He addresses others as "-san." He is smart and athletic. A member of the tennis club. First person: I (humble/formal).

They are hard workers and are currently away from home on a long-term overseas business trip.