The Old Maplestory?
 

not quite sure how this site works.
But i've been wanting to buy the rights to the old maplestory before Nexon Bought it.

I know Nexon owns it, but is there a possible way for me to get it from them?

This is unrelated to the purpose of the Requests forum - which is to request games you want to see added to Abandonia - so I've moved the thread to a more appropriate location.

Given that the franchise is still very much active, your chance of outright buying the rights is zero.

Licensing them should be possible. You'll have to contact Nexon's licensing department for that.