I think this experience could explain why her expression seems to have changed between her adolescence and her thirties. She looks noticeably sadder as an adult, and I like the idea that this experience might have left a lasting emotional mark on her, alongside the physical one.
Thinking about Utahime using her body to shield her students with Kusakabe's help, I can totally see her getting that face scar doing the exact same thing
Utahime lay perfectly still, her mind still clouded by the anesthesia. She could hear nurses outside her room :
(It’s something I’d really like to explore: the contrast between how much she cares about her skincare routine and having to see her face damaged).
#jjk#utahime