OK! So I've been searching for about.. idk 2 months trying to find this manga and all I could come up with for the summary was this.

So there is this blind Prince, who is considered USELESS by his father.So the father is sooo~ embarrassed and displeased by his son's weak behavior that he throws him in this dungeon, where a man that wins a group fight between other men can come and sleep with him, as a prize. The prince ACCEPTS 😃 this and just goes along with it 😔 , BUT there is this guy who stays by him and tends to his every need, because of his blindness, and washes him up and cleans him after the winner of the group fight... "Does what he wants"... So the servant guy gets tired of this one guy who always wins, from day one , and kills him. saves the blind prince...AND I can't remember the ending. 🙄 ....

So! please help me find this manga, it's been too long and I need to read this manga AGAIN! I think I've read it on manga fox and it was a one shot, if that helps. Thank you 😀

It could be from A Night of a Thousand Dreams by Jun Jin Suk and Han Seung Hee.
EDIT: The post below me is definitely right!

"You are mine. Even if the world shatters around me now."
[img]http://bakarenders.com/renders/albums/userpics/10157/normal_len1_copy.png[/img]

Sounds like "Please close my eyes" from Devil's Bride (KIM Sae-Young) (chapter 5)