Dramas where ML begs FL for forgiveness or begs her to do sth for him

I’m looking for a drama in which the ML hurts the FL before falling in love with her. Then he realizes how wrong he was and regrets everything. He begs the FL for forgiveness.

Or after hurting the FL, something happens to him and he needs her help. He begs her to help him. 

Please recommend any dramas with these theme 

A Love So Beautiful