Proposal : Update Manga Isekai de Shippai shinai 100 no Houhou published date

Proposal details

This proposal will make the following change(s):

Update the published date of the manga Isekai de Shippai shinai 100 no Houhou

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 : 21
Month : 12
Year : 2017
-
End Date :
Day : 17
Month : 9
Year : 2020

Based on the following reason: Missing