They both have Blue Lan as the male lead. They are both cohabitation drama and the tone of the dramas are similar.

Both have female twins that haven't met each other until they were adults, the poor twin lead the rich twin's life for different reasons.

But in Bride of the Century, there is a supernatural element; while Mask does not.

They both have Megan Lai as the female lead and did a very good job in both.

Bromance she is cross dressing as a guy because of a fortune. In Miss Rose, she is a hard-working, but unappreciated employee. But in both, her character helps the male lead in different ways.

They are not even close to the same plot, tone and genre. But, they both have Lee Joon playing an actor.

An actor is an actor is a gritty, dark and for older audience(18-19+). While Father is Strange is a family rom-com with lightness and humor.

They both show the gritty side of actors and the world of movie entertainment.
Both have the same tone as the other, and both have great casting.

Both have strong female leads that tackle injustice that happened to someone close to them.
Angry Mom tackles injustice in school and Whisper tackles the injustice in the law and judicial system.

Naeil's Cantabile is the adaption of the Japanese drama(along with manga, movies and anime).

I'll always love Nodame Cantabile! One of my first dramas of all time. But in Naeil's Cantabile, there were scenes that were added that I really enjoyed.

Both are super funny, heartfelt, and musically enjoyable. The music in both are fantastic to listen to for classical music lovers everywhere.

A cohabitation drama about multiple storylines and both are fantastic. I feel that both shows are realistic in certain ways(BH24 is more unrealistic) like each characters' personalities, and the problems each face.

Age of Youth is about the lives of five girls who are roommates.

Boarding House #24 is about the lives of seven roommates (four girls and three guys).

They both have Joe Cheng as the main lead.

Both of his characters are a little bit similar, but he is good at it.

Both are in cohabitation dramas and a rom-com.

Both have incest/taboo relationship.

90 Days of Love the main leads are cousins; while the Rose, there is half-siblings.

Both are very melodramatic, and I personally like The Rose better, but both are good for what they are.