On MangaUpdates it says it's fully scanlated, does someone know where can I read the chapters?
MU was wrong. There are 3 Japanese versions: the 1-volume physical version, the 2-volume digital version, and then the 1-volume digital version. The first volume of the 2-volume digital version got
an official English translation (with a fucking embarrassing title), but the second volume never got translated for whatever reason, meaning only the first 4 of 9 stories got translated. However, because the cover art is the same for Volume 1 of 2 and the complete digital version, whoever made or edited that MU page made a mistake, thinking that everything had been translated to English, when it hasn't been. Also, MU's “Completely Scanlated?” is broadly wrong in that it's actually used as a “Completed Translated?” field. Nothing had been scanlated (to English) at all as far as I'm aware.