Other nicknames: Chika's Angels.
SOURCE: Chika's Homepage.
As with Chirol, there are blue and pink variants.
Update 10/28/25:
I have located the source for both Chirol and Chiruchiru! Both were made by Chika, a housewife from Osaka, and distributed via Chika's Homepage. Sadly, it seems that her original gallery has not been archived.Her usage rules (Japanese) were basically: do not redistribute, make sure to link back, and comment on the page with a link to your own site if possible.
Unfortunately, westerners have long ignored untranslated guidelines like this, and her work ended up across the English-speaking internet without attribution.
I want to respect Chika's guidelines myself, but the fact is that Chirol and Chiruchiru are already out there and have been for over a decade. At this point, I feel the best way to respect the artist is to clearly credit her.
Blue
Pink
Couples/Groups
Two cute hinamatsuri animations that match Chirol's, a couple of website navigation graphics, and Christmas with Chirol.
