The K-eldest-son and K-eldest-daughter meet while sacrificing themselves in search of happiness and love.
Lee Ha-na
Kim Tae Joo
51 episodes
Lim Ju-hwan
Lee Sang-joon
51 episodes
Kim So-eun
Kim So-rim
51 episodes
Lee You-jin
Kim Gun-woo
51 episodes
Lee Tae-sung
Cha Yoon-ho
51 episodes
Kim Seung-su
Shin Mu-young
51 episodes
Wang Bit-na
Jang Hyun-jeong
51 episodes
Moon Ye-won
Lee Sang-min
51 episodes
Gi So-you
Kim Tae Joo [Young]
51 episodes
Chang Mi-hee
Jang Se-ran
51 episodes
