Most are second leads tho because usually they don't use the Rich Girl Poor Guy as leads
The Gentlemen of Wolgyesu Tailor Shop-Tae Jang and Hyo Won. (RICH GIRL,ONE SIDED LOVE, YOUNG COUPLE)
All About my mom-Hyeong Sun and Jae Ri (RICH GIRL,ONE SIDED LOVE, YOUNG COUPLE)
Seoyeong ,my daughter- Sang Woo and Ho Jung (RICH GIRL,ONE SIDED LOVE, YOUNG COUPLE)
The wife's lies (remake of Seoyeong, My daughter)- Dong Xu and Yian Juan (RICH GIRL,ONE SIDED LOVE, YOUNG COUPLE)
What happened to my family -Gang jae and yeong jin (RICH GIRL, ONE SIDED LOVE)
Shut up Family- Hee Bong and Ji Ho (RICH GIRL,ONE SIDED LOVE, YOUNG COUPLE)
Please let me know when you find ones similar to this ones.