I cannot directly install fonts or software on your device, but I can give you complete step-by-step instructions to install Hiragino Sans W9 (also known as Hiragino Sans Std W9 or Hiragino Kaku Gothic W9) on different operating systems.
Same as Windows – you need the font file: hiragino sans w9 install
On macOS, Hiragino Sans is preinstalled.
To check for W9 specifically: I cannot directly install fonts or software on
Hiragino Sans W9.ttf in /System/Library/Fonts/..ttf file → Install.It is specifically engineered to work seamlessly alongside its serif counterpart, Hiragino Serif, and supports a unified look across Japanese, Chinese, and European characters. Morisawa Inc. Installation Guide For Linux Same as Windows – you need the font file: 2
Right-Click Install: Select the file(s), right-click, and choose Install (or "Install for all users").