both male leads are inexperienced with dating. both go after the ex of their brother/best friend after they figure out that they have fallen for her. the female lead is also dumped because of her family background. there's a secret that if revealed will tear the 2 main leads apart. there also to males after the main female lead who is not sure who to chose the new romance or the old which hurt her in the past.

both drams have 2 brothers that are treated differently because of their mothers and biology. in fox`s summer, the male lead is grateful to the family that raised him but in pretty man, he doesn't want anything to do with that family. the main lead in pretty man has similar characteristics to the main female in fox`s summer. they are both looked down on by of a certain member of their family/stepfamily but they don`t let it bother them and try hard to make something of themselves without the need of their family name or position. both male leads are also the CEO of their company and have worked their way there on their own merit.

set in the same era. similar clothes and acting. the main leads are the same in the way that they are opposite and attract each other. making the other think about their and also making them better people.

Both set in academy's. Romance is similar. Both male leads are good at getting out of sticky situations. Both are trying to prevent a catastrophe from happening to the world.

The story balance humour and action well. They are both about academy's. The romance between the two main leads is similar too

In both dramas the male lead feels betrayed by his father or father like figure. They both travel around alot and also help the ones that the rest of the world thinks are bad but are actually good. Bothe male leads fall in love but don't want to admit it.

Both series have a character that can disguise themselves as anyone and also can disguise others as well. The main leads are connected to the royal family whether by blood or by obligation. Both stories have a lot of twists and turns. also alot of unexpected revelation's.

Both male leads have an incurable disease or illness. Both male leads are smart and very good at getting out of situations that are dangerous. both male leads are connected in one way or another to the royal family. They also are healer of some sort and help others around them by giving treatment. They also both use there blood to save some causing great harm to themselves. One of the differences are in fighter of destiny he decides to learn how to fight despite his illness but in love in between he fight using his mind by coming up with plans

Both are set in a hospital type setting. Both have main characters that have truama in there childhood. They work to over come that truama through the help of someone who cares about them.

They are both psychological dramas in which the ML holds back his feelings to protect everyone around him. The difference is that one's about a psychopath serial killer father and the other is about a antisocial personality author.

Both about the mafia. Have similar romance. ML and his brother are on opposite sides of the law. Both shows are about cops and criminals. Cheewit forcuses more on the criminal side where as the brothers shows both sides.