Proposal : Create a new Anime

Proposal details

This proposal will make the following change(s):

Create a new anime named Tensei shitara Slime Datta Ken 3rd Season: Kanwa - Diablo Nikki

Based on the following reason: Missing

With the source: https://myanimelist.net/anime/58592/Tensei_shitara_Slime_Datta_Ken_3rd_Season__Kanwa_-_Diablo_Nikki