The author of this is same as the Monster(2004) right?

Yep, the very same.

Loved this series, a dark retelling of seemingly always happy AstroBoy stories

I’ve never read the Astroboy arc Pluto was adapting, I only found out it was an adaptation after I finished it but now I’m definitely interested.

I heard this manga will be adapted to Anime by Netflix this year.

I’m happy about the anime adaptation coming out, but I have a feeling it won’t be able to match the manga’s melancholy ambience.