Proposal : Update Anime Nazo no Kanojo X: Nazo no Natsu Matsuri source

Proposal details

This proposal will make the following change(s):

Update the source of the anime Nazo no Kanojo X: Nazo no Natsu Matsuri

Change the source from Unknown to Manga

Based on the following reason: Missing

With the source: https://myanimelist.net/anime/13093/Nazo_no_Kanojo_X__Nazo_no_Natsu_Matsuri?q=Nazo%20no%20Kanojo%20X%3A%20Nazo%20no%20Natsu%20Matsuri&cat=anime