It is the default Korean system font. On Mac, you can manage or download additional weights using the Font Book App .
If you don’t own an Apple device or need a , try these. They are open-source or free for commercial use: apple sd gothic neo light font free download better
While Apple SD Gothic Neo Light is proprietary, there are several legitimate ways to access and use it: Apple SD Gothic Neo Light Font: Free Download - MaisFontes It is the default Korean system font