"AnJangChoi (안장최)" (An Yujin, Jang Wonyoung, Choi Yena) is an unofficial unit and the friendship group between Yujin, Wonyoung and Yena.
For the survival show Produce 48, they performed as Team 1 (Also had Hitomi in it) I.O.I's Very Very Very along with other girls that participated in Produce 48, at the time.
Team 1 was competing with Team 2 (Also had Eunbi, Sakura, Chaeyeon and Minju in it) that performed the same song on stage, but in the end it was Team 1 that had won the most votes.
|Choi Ye Na
||September 29th, 1999
||Main Rapper, Lead Vocalist, Lead Dancer
|An Yu Jin
||September 1st, 2003
||Lead Vocalist, Lead Dancer
|Jang Won Young
||August 31st, 2004
||Lead Dancer, Vocalist, Rapper, Center, Maknae
- They all have brown eyes.
- They all performed Very Very Very (I.O.I) on Produce 48.
- Wonyoung and Yujin are both in the Maknae Line, while Yena is in the Unnie Line.
- Wonyoung and Yena are both born in Seoul. But meanwhile Yujin is born in Cheongju.
- They are all born a different year.
- Yujin was born in 2003.
- Yena was born in 1999.
- Wonyoung was born in 2004.
- Only Yujin's MBTI is different (ESFJ), Yena and Wonyoung are both ENFP's with Eunbi.
- The name of this unit is entirely made of their family name mixed together. An Yujin, Jang Wonyoung, Choi Yena.