Kusae murakumo over 3 years ago Looks like suu possibly "drank" too much grape juice if she looks like this
Sashanna almost 2 years ago More like something poisonous or toxic. She has turned purple after absorbing such things until expelling them. Poison bubbles can be seen in this image, and Kurusu Kimihito's mouth makes it look like he is more in danger than in the parent image.