But it is undeniable that without these characters, the current hot Korean series would become boring.
Ko Yu Rim (Twenty Five Twenty One)
In the first episode of "Twenty Five, Twenty One", Ko Yu Rim (Bona) is the idol of the heroine Hee Doo (Kim Tae Ri), the source of the motivation that made Hee Doo want to transfer schools and determined to pursue fencing.
Netizens thought that when the two were officially a team, the audience would see a dreamlike friendship or at least the fan’s love for the idol. However, everything soon ended because of Yu Rim‘s bad attitude. From the very beginning, she expressed hatred towards Hee Doo and boycotted her new teammate.
She hates Hee Do because Hee Doo is rich, because when she was young, she lost to Hee Doo. Yu Rim‘s absurd behavior constantly hurts Hee Doo and makes the audience extremely uncomfortable with this character.
"Twenty Five, Twenty One" is a drama about the romantic story of two people who first met when they were 22 and 18, then again four years later at 25 and 21. The story follows the pure and fierce growth of immature youth and the excitement and difficulties between friendship and love.
Si Woo’s Dad (Forecasting Love and Weather)
This character only featured in a few moments, but he is the one who irritates “Forecasting Love and Weather” fans. He had only ever been interested in gambling. Si Woo (Song Kang) feels disgusted by him and refuses to meet his biological father.
He was the one who drove Si Woo into a situation that he didn’t have a place to live and was continually inventing reasons to get money from his son. He even went to meet his “future daughter-in-law” to ask for money when he found out Si Woo was dating Ha Kyung.
“Forecasting Love and Weather” tells the work and love stories of people working at the National Weather Service. It depicts the cheerful love story of people who have ups and downs at their workplace.
Kang Sun Joo – Jin Seok’s Wife (Thirty Nine)
This character is always definitely in love, stubbornly doing everything to keep Jin Seok by her side. In the past, she even got pregnant with someone else and used the pregnancy to force Jin Seok to marry her.
This action makes Sun Joo‘s blind love at the present time become absurd and despicable in the eyes of the audience.
"Thirty Nine" A drama depicting the real human experience of the friendship, love, and life of three women who are about to reach 40.
Source[1]