She lives with Emi and her family next to a field of sunflowers (in summer, at least). She and Emi are usually seen in their "secret house", a treehouse in the field of sunflowers.
- Her Japanese name, "Himawari", literally translates to "sunflower".
- In Hamtaro: Rainbow Rescue, she won't accept her invitation to Rainbow Land unless Stan gives it to her.
- Since 2018 her voice actress has voiced the character Shinnosuke Nohara in the popular anime series Crayon Shin-chan.