please tell me, which manga is this?

Acoring to the comment below it is Captive prince.

do you know where can i read it ??

Looks like a BL novel.

Download here: you need to be registerd at this site.

http://www.yaoiotaku.com/forums/threads/17452-captive-prince-c-s-pacat

Read online here: just search for volume 1. The link is volume 2.

http://www.onlinebook4u.com/others/4108.html

Sorry I cant give you better information. I have not read this novel yet. Hope you can read it.

thanks a lot!!!

I tried that link it's outdated and not working unfortunately.
http://rotxinxpieces.tumblr.com/post/144104160135/captive-prince
There's links to all 3 books on this page. It should all be working since I just downloaded the books just moments ago.
^o^

it works!!! thank uuu

Thx u so much