Are the rooms in "Aoi Bungaku" and "Mouryou no Hako" related or a real place? I was watching Aoi Bungaku episode 9 "Run, Melos" plot when I saw this scene which reminded me of an episode of Mouryou no Hako.





Notice that it's the same room and painting on the upper right. They are both in Showa era and the protagonists are look-a-like.

Is this related or a real place?
The painting on the upper-right is just a cover for a fictional magazine, 近代文藝 published by 稀譚舎, from the source novel.
Apparently, the background art and the music that plays during that scene had been reused and recycled. In fact, if you compare the staff/cast behind Mouryou no Hako and Aoi Bungaku (for episode 9–10), you see they have a lot in common:
Staff

Director: Ryosuke Nakamura
Art Director: Hidetoshi Kaneko
Sound Director: Yasunori Honda
Music: Shusei Murai

Cast

Tatsumi Sekiguchi/Takada (the protagonists): Hidenobu Kiuchi
Yoriko Kusumoto/Melos' Sister: Mikako Takahashi

which explains the protagonists looking and sounding alike, and the recycling of the room design as well as the fictional magazine. However, Run, Melos! has got nothing to do with Mouryou no Hako, so the similarities might only confuse people.