Alright, this a pretty good twist to be honest. She has a condition but it's not a threat to her life anymore but still gives her a very good reason to have insomnia. A lot better than I expected it to be.
@Doyamoko361 They acted like toxic pieces of shit last chapter since their translations weren't first. They act like they're above all and the "legit" ones.
https://www.reddit.com/r/manga/comments/d7ma4h/disc_made_in_abyss_ch_52/f12lb06/