Onigiri has an honest personality, loves learning, and is top of his class.He is the class leader.His dream is to become an engineer who can do great things all over the world in the future.

Dango likes Onigiri, and her hobbies are singing and painting.She is graceful and quiet, and very polite to others. But she's scared of bugs.

Ebiten is a bit cocky and very proud of his height.He is rough-tempered, but not a bad guy. He always sees Onigiri as a rival.

Mochi is always asleep, and doing things at his own pace. No one knows why his test score is not so bad. He likes soft pillows and is Onigiri's good friend.

Tako is very curious. She speaks the Kansai dialect, is impatient and fast-talking. She likes to ride roller coasters.

Sachi is the teacher of the class and teaches Japanese pronunciation. She is usually gentle, but sometimes strict. She likes to travel and make sweets. But she is afraid of haunted houses.