I want a drama where the mc is a regular guy and somehow through the series he gets together with a female a lot of people are pursuing.

I haven't watched it yet, but I think that My Little Princess fits the description. Also try You Who Came From The Stars if you haven't seen that already. The only thing about both of them that don't meet your request is that not a lot of people are pursuing the female leads.
Ho Goo's Love http://mydramalist.com/12380-ho-goos-love
Female is a celebrity athlete
Male is just a regular guy