Proposed by Hemorrhagician on 10 Jan. 2023 at 03:45 AM
This proposal will make the following change(s):
Update the genres of the manga Heavy Mecha Blues
Change the genres from :
Unknown
to
Comedy,
Ecchi,
Science Fiction
Based on the following reason: Missing
With the source: https://myanimelist.net/manga/19421/Heavy_Mecha_Blues