Road to Rebirth

Idol and regular girl (she’s rich but her identity was hidden at the time)
College love
Annoying girl whose in love with ML
Second lead couple

The storylines seem very similar. Idol star and his assistant form a relationship except in this one the girlfriend is a manger.

MLs are very popular , in Road to rebirth he is a huge established star who falls from grace. FLs become assistants and then lovers. ML falls for FL first. Story of RTR more detailed as it is a longer show.