you meen this one? http://www.mangago.me/read-manga/kobi_no_kyoujin/mf/v02/c013.8/4/
well I also wanna know
Bi no Kyoujin
It's a Ougi Yuzuha oneshot called Miotsukushi. https://www.mangaupdates.com/series.html?id=132619
Anyone know this manga?
http://www.mangago.me/read-manga/kobi_no_kyoujin/mf/v02/c013.8/5/