Is the counting wrong, it went from 106-110 Edit: We might be missing a chapter 😭...

You can read the translator's note here
https://www.mangago.zone/read-manga/josoushite_mendokusai_nekura_to_yankee_ryou_kataomoi/mdx/nml_chapter-111/pg-1/

Vol 12 ends at 105.5

Vol 13 starts at 106 but the official translation hasn't been released yet (it's gonna be released in oct 7). For now the translators uploaded the chaps they were able to translate from the raws they had. Which is why some chaps are missing.

Oh thanks, I haven't actually read the chapters yet bc I notice it was off. I'm gonna wait till it's fix