Episode 21 S01 E21

L (as Hong Jo) Shin Ye-eun (as Kim Sol-ah) Seo Ji-hoon (as Lee Jae-seon) Yoon Ye-joo (as Eun Ji-eun) Kang Hoon (as Ko Doo-sik) Jeon Ik-ryoung (as Park Shin-ja) Lee Yoo-jin (as Choi Da Som [Designer at Nalsaem Design]) Ahn Nae-sang (as Kim Soo Pyung [Kim Sol Ah's father]) Cho Ryun (as Bang Sil [Kim Sol Ah's step mother]) Kim Yeo-jin (as Sung Hyun Ja [Ko Doo Shik's mother]) Jeon Bae-soo (as Ko Min Jong [Ko Doo Shik's father]) Yang Dae-hyeok (as Cha Sang Kwon [designer Nalsaem Design]) 김예슬 (as Lee Hye Yun [designer Nalsaem Design]) Choi Bae-young (as Lee Roo Bi [Lee Jae Sun's ex-girlfriend]) Song Min-jae (as Dae Sung [street food vendor's grandson]) Choi Min-geum (as Dae Sung's grandmother [street food vendor]) Yeon Je-hyung (as Bang Gook Bong [Sol Ah's step-brother]) Cho Hyuk-jun (as Na Jin Won [veterinarian]) Gi Eun-you (as Hong Jo (child)) Lee Chae-hyun (as Lee Jae Sun (child)) Kwak Na-yeon (as Cashier) Jo A-Jin (as Friend) Kim Hyo-jin (as Nun)

love triangle cat transformation based on comic romance metamorphosis graphic artist hidden identity double identity cohabitation based on webcomic or webtoon