Proposal : Update Manga Girls & Panzer: Avanti! Anzio Koukou published date

Proposal details

This proposal will make the following change(s):

Update the published date of the manga Girls & Panzer: Avanti! Anzio Koukou

Change the published date from :
Start Date :
Day : Unknown
Month : Unknown
Year : Unknown
-
End Date :
Day : Unknown
Month : Unknown
Year : Unknown

to

Start Date :
Day : 1
Month : 2
Year : 2019
-
End Date :
Day : 21
Month : 6
Year : 2021

Based on the following reason: Missing

With the source: https://myanimelist.net/manga/141962/Girls___Panzer__Avanti_Anzio_Koukou