1 Musim
12 Episode
써클: 이어진 두 세계 - Season 1 Episode 4
In Part 1, Jeong Yeon gets attacked by a woman that claims that she’s an alien and shows Woo Jin a picture of her with the toy star that he gave her 10 years ago. In Part 2, Bluebird leads Joon Hyeok to his past to find out who he is. It turns out he is Beom Gyun, and Bluebird is Jeong Yeon.
- Tahun: 2017
- Negara: South Korea
- Aliran: Mystery, Sci-Fi & Fantasy
- Studio: tvN
- Kata kunci: artificial intelligence (a.i.), utopia, extraterrestrial
- Direktur: Sang-yeon Park, Min Jin-gi
- Pemeran: Yeo Jin-goo, Kim Kang-woo, Gong Seung-yeon, Lee Gi-kwang, Kwon Hyuk-soo, An Woo-yeon