I don’t know if I’m rude with my comment but if you don’t like it, don’t keep wasting your time. There are so many other dramas that you can watch and enjoy at the same time 😊. It’s just my personal experience after watching so many dramas. If I don’t like it, I dropped it and move on to another one
Maybe the brother had some psychic abilities that helped him to find out the password?😂😂