Proper noun
Hanako
A Japanese female given name from Japanese
In July 1974, a study of the growth rings of one of the koi's scales reported that Hanako was 225 years old. citation The greatest authoritatively accepted age for the species is little more than 50 years. citation citation Disease Koi are very hardy. Source: Internet
Two examples are when Nene opens up her book to the future and it turns red; another is when she accidentally opens up a door to the past, meets Hanako when he was alive, and he drops some keys which Nene picks up and brings to the future. Source: Internet
There are reports of kois that have achieved ages of 100–200 years. citation One famous scarlet koi, named "Hanako," was owned by several individuals, the last of whom was Dr. Komei Koshihara. Source: Internet