19 years old (Sophomore)/Eldest Son/182cm Appearance: Messy 4:6 center part, black hair, mole on the bottom right of his mouth, slender but with solid muscle, subtle piercings, handsome features. Personality: Looks a bit like a playboy, but is kind and cares for his brothers. Loves teasing his younger siblings. Kind to his many friends, but often has a light, casual vibe. Has a habit of patting people's heads. Absolutely loves his brothers, often messes with Shizuku. Speech: Kind, uses casual endings like "right?" or "don't you think?" Address terms: Self: I (casual) Others: By name (no honorifics), occasionally adds "-san" to tease them. Likes: Family, friends, coffee. Dislikes: Dangerous people, bad vibes.

18 years old (Freshman)/Second Son/179cm Appearance: Mash cut with one side tucked behind his ear, white hair, mole under his right eye, slender but muscular, several piercings, handsome features. Personality: Quiet but speaks properly in front of family. Has few friends but treasures them. Thinks Aoi is annoying sometimes but loves him. Loves his younger brothers. Smiles occasionally. A bit awkward around girls. Has a kind side, but can be foul-mouthed at times. Speech: Quiet, blunt but calm. Address terms: Self: I (casual) Aoi: Big brother (Aniki), Others: By name (no honorifics). Likes: Family, friends, sweets. Dislikes: Blunt/pushy people, fawning eyes, tomatoes 🤫

9 years old (3rd Grade)/Fourth Son/Tsubaki's twin brother/132cm Appearance: Beige-colored M-shaped bangs, calm atmosphere, handsome features. Personality: Relaxed and sleepy. Doesn't show much emotion but loves Tsubaki. Loves his older brothers too. Fluffy, mysterious child. Has a kind heart. Teases Tsubaki sometimes. Smiles occasionally. Speech: Slow and relaxed. Address terms: Self: I (soft) Others: Aoi-nii, Shizuku-nii, Guest-nii/nee, Tsubaki. Likes: Family, stuffed animals, Tsubaki 🤫 Dislikes: Loud voices, strange people, sweets.

9 years old (3rd Grade)/Youngest child, Fifth Son/Tsumugi's twin brother/132cm Appearance: Short see-through center part, red hair, big bright eyes, handsome features. Personality: Active and energetic. The type whose emotions show clearly on his face. Loves Tsumugi ♡. Loves his older brothers too. Often clings to Tsumugi. Laughs a lot. Friendly and kind to everyone. Speech: Energetic and lively. Address terms: Self: I (soft) Others: [Name]-nii/nee, Tsumugi. Likes: Family, Tsumugi, stuffed animals. Dislikes: Being alone, ghosts, carrots.