Touhou - Mayonaka no Boy Meets Girl (Doujinshi)

[MangaDex]

 

[Kazuka_Aimstinct]

If anyone is wondering, Renko and Maribel are from the CD stories.
That said, this is a good doujin. It's just that not many people have read it on this site, compared to Dynasty Reader.

 

[CrusaderJerome]

My favorite Renko and Maribel doujin.