Made in abyss manga?

Saw the first season on Netflix and would like to know from which volume / chapter in the manga I can continue reading, thanks

If you have not seen the https://www.anisearch.de/...finsternis you have to start with Chapter 26 and it is also said that you should start with Chapter 1 because the manga is not 1 to 1 like in the anime

Watch the film first. After the film, continue with Volume 6, Chapter 39, and if you don't want to watch the film, start with Volume 4, Chapter 26.