Chiitan is a Yuru-chara, but it's not entirely clear if it truly fits the 'Yuru-chara' mold.

To explain its origins, Chiitan was born when a small-clawed otter kept by an individual was appointed as a tourism ambassador for Kochi Prefecture in Japan in 2018.

To elaborate on its profile, Chiitan is designed as an 'otter fairy,' and claims to be eternally zero years old. The hat on its head is a character named Kame-chan, who is occasionally alive.

By the way, it seems that Kochi Prefecture hasn't officially acknowledged Chiitan as a tourism ambassador, so its title may be self-proclaimed.

Despite all these quirks and continuous troubles, this character is highly recognized as a Yuru-chara.
It has extraordinary athletic abilities and is active as a Youtuber. If you're talking about Yuru-chara in Japan, the name Chiitan is likely to come up, so it might be good to remember it.