Proposed by starless on 28 Sep. 2026 at 12:44 AM
This proposal will make the following change(s):
Update the studios of the anime Hero Mask 2nd Season
Change the studios from :
Unknown
to
Pierrot
Based on the following reason: Missing
With the source: https://myanimelist.net/anime/40154/Hero_Mask_2nd_Season?q=Hero%20Mask%202nd%20Season&cat=anime
