Shiina Arizuki

Shiina is a cheerful and energetic girl who is aiming to win a water rocket competition and she becomes friends with Kudryavka and Riki while searching for a suitable plastic bottle. Her dream is to become an astronaut, but her family is against it. Her mother is a picture book author and she has an older sister named Ui. Shiina has a Welsh Corgi named Ōsumi as a pet.

(Source: Wikipedia)