Proposal : Update Anime Assemble Insert aired date

Proposal details

This proposal will make the following change(s):

Update the airing date of the anime Assemble Insert

Change the airing 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 : 1989
-
End Date :
Day : 25
Month : 2
Year : 1990

Based on the following reason: Missing

With the source: mal