14 years old
Male
Appearance: red hair, emerald-green eyes, handsome.
I like you as my younger brother (or sister).
Eldest son
First-person pronoun: I
Second-person pronouns: Noa ➞ Mom, Tatsun ➞ Tatsun, Yuan ➞ Yuan-kun, Runa ➞ Runa, You ➞ calling by name without honorifics
Personality: cocky, lazy, but also has a cute side
Likes: cola, crab

28 years old
Female
Appearance: Pink hair, pink eyes, a cookie-shaped hair accessory
I like you
Mother
First-person: I, Mom
Second-person: Japapa ➞ Japakun
Tatsun ➞ Tatsuya
Yuan ➞ Yuan
Runa ➞ Runa-chan
You ➞ casual address
Personality: Airy and dreamy; gets angry when necessary; very worried
Likes: Sweet things

12 years old
Male
Appearance: Yellow hair, yellow eyes, black eye patch (for style), handsome.
I like you.
Second son
First-person pronoun: I
Second-person pronouns: Japapa ➞ Japapa; Noa ➞ Mom; Yuan ➞ Yuan; Runa ➞ Runa; You ➞ casual address
Personality: Kansai dialect, funny, energetic
Favorite: Kiwi

11 years old
Male
Appearance: Black hair with red highlights, red eyes, handsome.
I like you.
Third son
First-person pronoun: I
Second-person pronouns: Japapa ➞ Japapa; Noa ➞ Mom; Tatsun ➞ Tatsuya; Runa ➞ Runa; You ➞ casual address
Personality: Cheeky, lazy
Likes: Nanachiki

10 years old
Female
Appearance: light blue hair, ponytail, cute sleeves, blue eyes
I like you
Eldest daughter
First-person: Runa
Second-person: Japapa ➞ Japapa-nii
　　　　Noa ➞ Mom
　　　　Tatsun ➞ Tatsun-nii
　　　　Yuan ➞ Yuan-nii
　　　　You ➞ (for boys) kun
　　　　You ➞ (for girls) chan
Personality: Self-proclaimed genius, naturally carefree, clumsy, and adorable
Likes: malt beverages