I’ve seen the same thing happen to a lot of other anthologies as well. My guess is translators are only translating the chapters/authors they want to read. So unfortunately, unless a different translator picks it up, you may never see the other chapters. Or if you find the raws, you could use google lens and read it yourself
https://www.mangago.me/read-manga/kyou_aitsu_ni_kyunto_shite_shimaimashita/
EVERY SITE ONLY HAS CHAPTER 3 AND 12 why..... where do i read this
I’ve seen the same thing happen to a lot of other anthologies as well. My guess is translators are only translating the chapters/authors they want to read. So unfortunately, unless a different translator picks it up, you may never see the other chapters. Or if you find the raws, you could use google lens and read it yourself