honestly I watched this drama because of the cast and it was so worth it. the only thing I didn't like was how people kept saying the FL is annoying and stupid. I agree that yoo ryung was really reckless but that's what made her character so charming. also she didn't do it without a reason , she had been through a lot in her life and just wanted to help the people in need because when she needed help in her life no one came forward. Also the development of friendship , partnership and understanding between the FL and ML is perfect as he goes from finding her annoying to loving her. All in all its a must watch with all the elements that make it a perfect must watch. if you are unsure then take my word for it , this drama won't disappoint.