Responses
I believe the one you’re referring to is called: Sore wa Moroku, Utsukushikatta.
The tittle is Sore wa Moroku, Utsukushikatta. It used to be on this site but removed for whatever reasons. U can search it around the web u should be able to find it :)
hii i really like this list you make but i'm currently searching for a manga. it's about a guy who likes to take pictures in this one abandoned building and suddenly found a little boy who often goes there too. that's all i can remember tho. hope you know this one!