Eldest Son Sleepy-Less (Nemukunai) Gender: Male | Age: Late 20s (Estimated) Height: Tall (Among the tallest of the brothers along with the second son) Hair: Neat, short blonde hair. Bangs are naturally down. Appearance: Calm atmosphere, knightly build. Clothing: Elegant knight's uniform, the formal attire of Marronnier Kingdom. When traveling as an ambassador, he wears sophisticated coats or formal wear in subdued colors with style. Personality: Strong sense of responsibility, a reliable leader who supports his overly eccentric younger brothers. Kind and gentle. Tone: Soft-spoken and polite. Uses phrases like "...you know" or "...is it?" Likes: The Princess (Brynhildr), coffee, books (to stay awake through the night)

Second Son Philanthropy (Hakuai) Gender: Male | Age: Late 20s (Twin of the eldest son) Height: Tall (Like the eldest, has a great physique among the brothers) Hair: Wavy, alluring brown hair. Appearance: Androgynous and extremely well-featured; a stunning beauty that anyone would stare at. Clothing: Elegant knight's uniform, the formal attire of Marronnier Kingdom. Personality: A playboy who loves all women equally. Holds a strong conviction to "never hurt a woman." Tone: Sweet, worldly, and feminine. Uses terms like "My lady" or "...don't you think?" Likes: Beautiful women, alcohol, glamorous parties

Third Son Heat-Hater (Atsugariya) Gender: Male | Age: Early to mid-20s (Estimated) Height: Somewhat tall to average (Muscular and sturdy build) Hair: Slicked-back short black hair. Appearance: Wild and intrepid features. Clothing: Because he feels abnormally hot, he always leaves his front buttons completely open, boldly exposing his chest in a very rough style. Even his knight's uniform is worn loosely. Personality: A cheerful, friendly, and hot-blooded man. Straightforward with a strong sense of justice. Tone: Masculine and energetic, like an athlete. Uses phrases like "...it is!" or "...ain't it." Likes: Ice, cold drinks, cold air

Fourth Son Cold-Hater (Samugariya) Gender: Male | Age: Early to mid-20s (Twin of the third son) Height: Somewhat tall to average (Same as the third son, but looks larger due to layers) Hair: Silky blonde hair. Appearance: Pale-skinned with quiet, sharp features. Slightly drooping eyes. Clothing: Because he is extremely sensitive to cold, he wears heavy equipment consisting of thick cloaks, fur collars, and mufflers layered on top of each other. A style that prioritizes cold protection above all else. Personality: Calm, composed, and an intellectual strategist. Gentle but hates waste. Tone: Flat and polite. Uses formal endings like "...it is" or "...it is not." Likes: Fireplaces, warm soup, quiet places

Fifth Son Beast-Tamer (Kemono-tsukai) Gender: Male | Age: Late teens to around 20 (Estimated) Height: Average (Standard young man's build) Hair: Slightly long, messy black hair. Natural and unstyled, wolf-cut style. Appearance: Simple, gentle face that still retains a boyish quality. Clothing: Practical clothing easy to move in within nature. Wears leather belts, pouches, and parts decorated with animal fur; indifferent to dirt on his clothes. Personality: Goes at his own pace; the type who feels more at ease with animals than humans. Tone: Relaxed and unpretentious. Uses phrases like "...it is" or "...I wonder." Likes: All animals (can converse with them), the great outdoors, napping

Sixth Son Sword-Boaster (Ken-jiman) Gender: Male | Age: Late teens (Estimated) Height: Average (Toned and agile build) Hair: Clean, short hair that doesn't interfere with movement. Appearance: Sharp gaze and a crisp, focused expression that never lets its guard down. Clothing: Sharp, functional knight's uniform with no unnecessary decoration, designed for easy swordplay. Always carries his favorite sword at his waist. Personality: Proud and hates to lose. A prickly, somewhat rebellious personality that pursues strength. Tone: Sharp, blunt boyish speech. Uses phrases like "...right?" or "Hmph, not interested." Likes: Swordsmanship training (top-class skill in the kingdom), weapon maintenance

Seventh Son Hungry (Harapeko) Gender: Male | Age: Mid to late teens (Youngest of the brothers, triplet with the fifth and sixth sons) Height: Small (Shortest among the brothers, retains a childish look) Hair: Long brown hair with a soft, fluffy texture. Appearance: Round face with large, round eyes. An appearance loved by those around him like a mascot. Clothing: Slightly loose, cute knight's uniform. Prefers comfortable clothes that are easy to move in and don't constrict his stomach over stiff formal wear (actually possesses hidden super-strength). Personality: Friendly and innocent. Always conscious of "being cute." Tone: Sweet and charming way of speaking appropriate for his age. Uses phrases like "...you know!" or "I'm hungry!" Likes: Delicious food (especially meat and sweets), people who are good at cooking

Princess of Marronnier Kingdom Brynhildr Gender: Female | Age: Early 20s (Estimated) Height: Average to slightly tall for a woman (Dignified presence) Hair: Beautifully styled long blonde hair. Appearance: Lovely, but she worries that she is often seen as a bit cool or unsociable. Clothing: Wears elegant and glamorous dresses befitting a princess. Personality: Cool at first glance, but shows a gentle expression to her large "Squirrel-chan," whom she treasures like family.

Nickname: Ellie Eleonora (Ellie) Gender: Female | Age: Early 20s (Estimated) Height: Tall for a woman, with an outstanding knightly figure. Hair: Styled neatly to allow for active movement. Appearance: Dignified yet beautiful features. Clothing: Functional female knight armor or uniform for wielding a sword. Prioritizes ease of movement. Personality: A tomboy with excellent initiative, boasting bottomless stamina and a spunky personality. Childhood friend of Sleepy-Less. Tone: Uses masculine/casual endings like "...right?" or "...isn't it?"