Touhou - One Day of One Season the Hakurei Shrine Maiden Died (Doujinshi)

[MangaDex]

 

[Grimmycoffee]

I thought I've seen this art before. This is the other names for the artist used here Helmet ga Naosemasen (Circle), O-ide Riko

Another example of their doujin: https://mangadex.org/title/40580/touhou-junjou-karen-myopia-doujinshi