I don't know the main characters in 'Secret Campus' as I haven't seen it.
In the Korean drama 'Secret Angel', the main characters are likely to be those who drive the story forward. It could be a young couple who find themselves in a situation full of secrets. The male character might be someone with a mysterious background, while the female character could be a girl-next - door type with a pure heart. Their different personalities and the secrets they hold will create a web of relationships and events that form the core of the drama.
There are two main characters in 'Secret Door'. King Yeongjo, who is in charge of the Joseon Dynasty, he has to deal with various political issues. And Prince Sado, his son, who has his own pursuits and ideas, but unfortunately, their relationship is full of contradictions, which is a key part of the drama.
Since I don't know the drama specifically, I can't tell you the main characters.
The main characters are Kim Joo - won, a wealthy CEO, and Gil Ra - im, a stuntwoman.
Typical characters include the female lead who has a big secret, like she's actually a long - lost heiress or something. The male lead is usually charming and confident. There are also side characters such as the nosy neighbors or the over - protective parents. The nosy neighbors add some comical elements and the over - protective parents often create obstacles for the love story because of their own secrets or concerns.
The main characters include Shin Ji - hyun, who is the one in the coma trying to collect the tears. Song Yi - kyung is another important character as Shin Ji - hyun enters her body. There is also Kang Min - ho, who has a complex relationship with Shin Ji - hyun.
I'm sorry, I haven't watched 'Secret Campus' in detail, so I can't accurately tell you the plot.
Park Chang - ho is the central figure. He is a lawyer with a not - so - impressive career before the 'Big Mouth' fiasco. Ko Mi - ho, his wife, is a strong - willed woman. She doesn't sit back when her husband is in trouble but actively takes steps to get him out. In the prison, there are some inmates who are both friends and foes to Park Chang - ho. For example, some inmates may help him because they also want to expose the real 'Big Mouth' situation, while others may try to harm him for their own interests. And the prison guards also have an impact on how the story unfolds.
The main characters are Shin Mi - Rae and Jo Guk. Shin Mi - Rae is a spunky woman working in the city hall, and Jo Guk is an important figure who gets involved with her.
Since I'm not familiar with the specific 'Secret Garden Korean Story', I can't say for sure. But typically in such stories, there could be a young protagonist, perhaps a girl or a boy who is curious and adventurous.