JANG Family
Ms. Jang (Jang Yewon): The oldest Jang family
Jang Taeny: The oldest sister
Park Kihoon: Taeny's husband
Park Eunyeon: Tae-hoon's daughter.
Jang Sungho: The second brother
Lee Sojin: Sungho's wife
Jang Taemin: Sung-jin's son.
Jang Nara: The youngest and Yumin's mother.
Han Gia Tuan: Nara's husband and Yumin's father (Gia Linh).
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DIAMOND STAR'S ARTIST
* IOI :
Jeon Somi
Kim Sejeong
Choi Yoojung
Kim Chungha
Kim Sohye
Jung Chaeyeon
Kim Doyeon
Kang Mina
Im Nayoung
Yoo Yeonjung
Joo Kyulkyung
* Wanna One :
Kang Daniel
Lai Guan Lin
Park Jihoon
Ong Seungwoo
Hwang Minhyun
Ha Sungwoon
Lee Daehwi
Bae Jinyoung
Yoon Jisung
Park Woojin
Kim Jaehwan
* IZONE
Kwon Eunbi
Miyawaki Sakura
Yabuki Nako
Kang Hyewon
Choi Yena
Kim Chaewon
Kim Minju
Honda Hitomi
Lee Chaeyeon
Ahn Yujin
Jo Yuri
Jang Wonyoung
* X1
Kim WooSeok
Kim Yohan
Son Dongpyo
Cho Seungyeol
Lee Hangyul
Han Seungwoo
Song Hyeongjun
Lee Eun sang
Cha Junho
Kang Minhee
Nam Dohyun
* Kim Samuel (Solo)