Idol brothers' idol younger siblings

prolog

이민혁

Yeoju's eldest brother / BTOB's second oldest

채형원

Yeoju's second older brother / Monsta X's fourth

김태형

Yeoju's third older brother / BTS's sixth

차은우

Yeoju's fourth older brother / ASTRO's third

민희형준

The older brothers that the female lead likes, whom she became close with on Produce 101

세븐틴

The group the female lead belongs to

더보이즈

The group the female lead belongs to

김여주

The younger brother of the older brothers and the youngest member of Seventeen and The Boyz (16 years old)

The female lead and her brother changed their last names so that they wouldn't be found out they were siblings.