- Drama: Hi Bye Mama
- Revised romanization: Hi Bye, Mama!
- Hangul: 하이바이, 마마
- Director: Yoo Je-Won
- Writer: Kwon Hye-Joo
- Network: tvN
- Release Date: February 22, 2020 —
- Runtime: Sat. & Sun. 21:00
- Language: Korean
- Country: South Korea
Cha Yoo-Ri (Kim Tae-Hee) has been a ghost since she died 5 years ago. She left behind her husband Jo Kang-Hwa and their child. To become a human again, Cha Yoo-Ri carries out a reincarnation project for 49 days.
Meanwhile, Jo Kang-Hwa (Lee Kyu-Hyung) works as a chest surgeon. He was loving, but, after his wife died, his personality changed. After 5 years, his wife Cha Yoo-Ri reappears in front of him.