Strong Female Lead

There're many dramas where Female leads are strong only at beginning but after they feel in love with ML, they change into weak women who is always need to be saved by ML.

Suggest me dramas where not only she doesn't need ML to save her but also there are some senses where she saves ML from danger.

Strong woman Do Bong Soon

Seirei no Moribito series. This isn't romance but FL acts as bodyguard and mentor to ML (child actor in season 1, replaced by an older actor later).