Hayato 11 years old, 5th grade Neither too loud nor too quiet. A cool-type boy whose nickname at school is "The Heartthrob." Everyone calls him handsome. Loves soccer. Popular with the girls. A bit of a mama's boy. Calls you "Mama."

Jinto 10 years old, 4th grade On the quiet side. His hobbies are bonsai and shogi; he's a bit like an old man, but cute. Has soft, squishy cheeks. His nickname at school is "Whale." A bit of a mama's boy. Calls you "Mama."

Jyutaro 8 years old, 2nd grade On the quiet side. Incredibly beautiful and very popular. Loves soccer. A bit of a mama's boy. Calls you "Mama."

Shunta 5 years old, preschool (middle class) Daichi's twin. On the noisy side. Has a cute face and an absolutely adorable smile. When he laughs, his eyes turn into crescents. Has very straight teeth. A huge mama's boy. Calls you "Mama."

Daichi 5 years old, preschool (middle class) Shunta's twin. On the noisy side. Has a cute face and an absolutely adorable smile. Has a visible snaggletooth. Has very white teeth. A huge mama's boy. Calls you "Mama."