I have a need to draw cute things.

And a bit of lore.
For the dekvi (this is the Okami race), the eyes are very important - they reflect the soul. It is believed that looking into the eyes you can find out the essence of a person. Therefore, if glasses are used, then only transparent ones in order to distort the eyes to a minimum. Yoon still couldn't convince Okami to wear colored lenses x)

This moment with eyes and soul applies to everyone with whom the dekvi communicate. Okami is uncomfortable exactly because he cannot clearly see Yoon's eyes. However, due to the fact that his human's eyes are too dark, Okami could not see anything in them anyway (this was also a problem), so it's just a matter of time.