Your display picture. Of the girl and boy. One is blindfolded and the other is gagged. I found it really gorgeous. I was curious about whose artwork it is.
Oh / - \ They are both guys, Mika and Ferid from Owari no Seraph, and the fanart is from Dessa
https://dessa-nya.deviantart.com/art/Owari-no-Seraph-Ferid-Mika-553671838