I fucking bet this set of chapters was skipped because it's all waifus and the heroaca translation team at JB are a bunch of literal faggots who will happily sip anything that isn't yaoibait.
Ohhhh, I get it. She can see different wavelengths of light. This is based off of those stories about people testing out IR cameras in the vietnam jungles being able to see demons.
@Ashandai it's because the male MC didn't get cucked in this series.
You're probably feeling upset that there's no NTR but you don't want to admit it to everyone here because then we'd know you're a gigantic cuck lol.
I legitimately can't tell if they're talking about internal organs or shitting on the floor.
I know the author isn't above guro so this might be an arc for the ages.