Proposed by Hemorrhagician on 25 Jan. 2023 at 10:49 PM
This proposal will make the following change(s):
Update the demographic of the manga Girls & Panzer: Ribbon no Musha
Change the demographic from Unknown to Seinen
Based on the following reason: Missing
With the source: https://myanimelist.net/manga/80281/Girls___Panzer__Ribbon_no_Musha