Proposed by Mawoin on 09 Feb. 2023 at 03:22 PM
This proposal will make the following change(s):
Update the season of the anime Tanoshii Muumin Ikka
Change the season from Unknown to Spring 1990
Based on the following reason: Missing
With the source: https://anilist.co/anime/2150/Tanoshii-Moomin-Ikka/
