Proposal : Update Manga 12 Beast published date

Proposal details

This proposal will make the following change(s):

Update the published date of the manga 12 Beast

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 : 9
Month : 5
Year : 2013
-
End Date :
Day : 8
Month : 6
Year : 2019

Based on the following reason: Missing

With the source: https://myanimelist.net/manga/51315/12_Beast