I want to use Medium width font on Windows GVim

I use Windows GVim.
For example, if you want to use a medium with equal width of Genjin Gothic,

set guifont=*

If you select the font name Genjin Gothic style Medium size 11 from the list, it will be displayed in Medium width.
The guifont was then set to source true Gothic equal width_Medium:h11:cSHIFTJIS:qDRAFT.

However, you can use this string directly

set guifont=source true Gothic equal width_Medium:h11:cSHIFTJIS:qDRAFT

When configured as , for some reason it does not become Medium and appears in the Regular width.

How can I set up a medium width font?