No it is spin off of prequel story which is not available free , but u don't have to read main to understand it characters don't appear just school are same.
Hello, the volume "Kokage no Yokubou"
is on this page zonatmo.com ,although it's in Spanish. I hope it helps.
Thanks bro! You dabesh. You know what? Spanish translators always have these manga that are always hard to find. When I was younger I know I'll be getting them raws ASAP when I type in the title and add the word 'capitulo' and it always saves my ass
You're welcome! My native language is Spanish ٩(๑❛ᴗ❛๑)۶
I always think the opposite: if I can't find the full translation in Spanish, I look for it in English, jajajaj (≧∀≦)
Does someone has raws?? I also heard that this one has a spin off