Any historical romance drama (korean or chinese) where the male is not strong, doesn't know how to fight but the female is very strong and knows how to fight and protects/saves the male?

  • The Legends - Only in the beginning. 
  • Alchemy of Souls - It's a little complicated. In the beginning the FL is a very strong and skilled fighter, but she loses her power. The ML's power has been blocked since he was a baby and no one would train him properly. Although the FL loses her power, she still has the knowledge and willpower of a strong fighter. She uses both to get the ML's power unblocked and to train and protect the ML, who quickly becomes stronger and protects her in return.
  • Oh My General - I dropped it, so not sure about the second half.

There’s many where the female starts to be this badass female lead but than she turns into a damsel in distress. 

but have you seen 

The legend of Fu Yao? (she was very bad ass but that went down hill. She meets the male lead and always gets beat up so he can save her.) 

Also do you mean he is a weak like no fighting skills at all? 

Also mentally in Untouched Lovers the lead girl in both parts of the drama she is very strong girl but not in the physical aspect but she doesn’t let no one step all over her, and the male lead is the one who is very manageable. Like he believes people lies and stuff like that.

You can try A Girl Like Me. The FL is stronger in terms of martial arts coz the ML is a gentleman scholar.