Proposal : Update Manga Umineko Biyori: Rokkenjima e Youkoso!! published date

Proposal details

This proposal will make the following change(s):

Update the published date of the manga Umineko Biyori: Rokkenjima e Youkoso!!

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 : 22
Month : 6
Year : 2009
-
End Date :
Day : 22
Month : 6
Year : 2009

Based on the following reason: Missing

With the source: 07th expansion wiki