is this a manga or an illustration ?

I remember Kathy explaining that it is an illustration for a light novel or something... but definitely not a manga

aww too bad :( I really hoped it was a manga

It it an illustration by the mangaka (Yamane Ayano) of Viewfinder and Crimson Spell, and is supposedly for a light novel that has not been translated.

no its a manga talk about a boy how lost his consciousness in the Desert and found by this man how have afriend his wife was Committed suicide to save her honar and think that his friend was soil her but the tow men know stubbornly fighting for the boy but he get rape by the first so the second hat him and wish him to suicide .unfortunately I dont remamber the name of it

Nope.. the one you'r talking about it's this one here:
* http://www.mangago.me/read-manga/futari_no_maharaja/
But the pic posted by @エル is indeed an illustration by Yamane Ayano for a light novel .