1 Musim
12 Episode
써클: 이어진 두 세계 - Season 1 Episode 5 (2017)
In part 1, After Woo Jin shows Jeong Yeon the photo of them together ten years ago, she gets confused about who she is. In part 2, Beom Gyun meets Jeong Yeon who had become Bluebird. Meanwhile, Ho Soo starts having nosebleed as he slowly recovers his memories.
- Negara : South Korea
- Aliran : Mystery, Sci-Fi & Fantasy
- Studio : tvN
- 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
