I search a revenge story with the revenge reason because his or her beloved is killed thus he or she want to destroy everything, is this sort of story exist?

If it is, can tell me?

Also, please make sure that isn't Harem story, because i HATED it.

When i say non-harem is 1-1 person love. No second person or anything.

Queen of Devouring is in the signature.
Her goal is to destroy the world for other reasons than the death of anyone related to her. You will learn her reasons as time passes by. No harem.

Also, you have a typo. You wrote that it 'isn't non-harem', which could be misleading if not for the later sentences and the title. No secondary love, no second person, nothing. 1-1 person love. Simple as that.

I don't have the revenge plot, so it might not be what you are looking for. It's up to you if you give it a try.
Have a nice day.

Ha! then this is EXACTLY what you're looking for. it matches what you're looking for 102%

http://royalroadl.com/fiction/12626/inhuman