Unless you have charity workers in Hong Kong, this is likely an attempt by bad actors trying to get access to your WordPress.
No need to be worried. They are trying an amateur way to break in.
There is a useful add-on to WordPress called “WordFence”. It gives you more options when people like this make these attempts. Like blocking that IP from reaching your server for any amount of time you choose (hours or days). This makes them lose interest and move to other WordPress sites.
I use it on WordPress sites I manage and it is reasonably priced.