there's one manga, the title is Trap. the author is ebihara yuri..... I've read it a long ...

I remember reading it on here but for some reason, it's gone and I can't find it on here. Use kissmanga, I read it on there

Unfortunately i can't open kissmanga in my country.... damn

I found it: http://www.mangago.zone/read-manga/trap_ootsuki_miu/

thank you for the effort, but the author supposed to be ebihara sensei

Sorry, I thought this is the one you were talking about

This one? http://www.mangahere.co/manga/trap/

Yep!!! That's the One~ (≧∀≦)