HEBE MEMBERS:

Diana - 9 - Since they’re same aged friends, it was naturally for Diana and June to become close with each other. They usually hang out together and help each other out with dancing/rapping. Since Diana and June are the main positions for their strengths and have similar back up positions, the two usually hang out a lot and practice together.

Aydee - 9 - Along with Diana, the three of them are pretty close since they’re close within the same age range. Since she was born from California, June finds it easier to talk to and confide in Aydee. Her and Diana are considered as June’s best friends in the group. She usually prefers to speak in English with her. Calls her umma because she’s the co-leader of Corona.

Joanna - 9 - Joanna, Aydee, and June are a part of the “English” line within Corona. Aydee and June serve as her “parents” since they all find it more comfortable to speak in English with each other. Since she is the maknae of HEBE, alongside Bogyeon, June loves to spoil the two youngest ones and always tries her best to look out for them.
 
Z - 9 - “My Unnie” and “My dongsaeng”; kind of like a parody play of Kim Jungkook’s and Haha’s relationship on Running man. Since Z is a year older and is the lead dancer, the two are really close because of their passion for dance. June is Z’s favorite dongsaeng since she’s Corona’s Big Unnie and she’s very affectionate towards June. Looks up to her as an older sister and usually goes to her for advice. 

BIA MEMBERS:

Min-U - 8.5 - Since Minsoo was the first person June became friends with when she became a trainee, she tended to lean on her a lot and is the member she’s closest to in BIA. Since June gravitated towards her, she leaned on her whenever training got tough. 

Su - 8.5 - Su was the second friend that June made since she’d bump into her whenever she had time to take classes at 1Million together. They like to make choreography together and often hold dance sessions with the rest of the dance line in Corona. Su is one of her closest friends in Corona as well.

Emi - 8.5 - Looks up to Emi since she is Corona’s Leader as well as a good unnie that looks out for her. Calls Emi appa since she’s the other leader and she’s always makes sure that June isn’t too reckless when she plays/jokes around

Bogyeon - 8.5 - Since Bogyeon is playful and naughty, June loves to partner up with her when it comes to playing pranks on the other members. The two become an unbeatable duo when it comes to variety games/pranks and always try to lift up the mood of the other members whenever together.

Cheonsa - 8.5 - Hangs out with Cheonsa whenever dance line comes together to have a dance session. She looks at Cheonsa as her little sister because they get along easily with their passion for dance and is affectionate towards her. Loves to joke and . 

Just suggestion/references ^^;; 
English line: Aydee, June, and Joanna
Dance line: June, Z, Cheonsa, and Su