Japanese (I think) coin [Resolvido]

Hi,

I just bought this coin today, and I have no idea about it, neither Far East countries generally. By writting, I think is japanese, but I would like to know the year, and the denomination.
Thank you.

On first side is 一〇四 which is Year 104
On other side is 1 which is 1 New Dollar
It is from Taiwan, date 2015
https://en.numista.com/catalogue/pieces966.html

Citação: "ZacUK"​On first side is 一〇四 which is Year 104
​On other side is 1 which is 1 New Dollar
​It is from Taiwan, date 2015
​https://en.numista.com/catalogue/pieces966.html

​I wasn’t expecting this, judging by coin’s state. I thought it was much older (at least 50 years).
Thanks for your help (again).