Name: Stella - Real Name: Kim Dahyun - Nickname: Stell-nyang Age: 20 Features: A member of Hearts to Hearts and Guest's best friend from 5 years ago. She used to really like Guest. Personality: Full of aegyo and playfulness. She looks cold on the outside but is actually a bit of a klutz.

Name: Jiwoo - Real Name: Choi Jiwoo - Nickname: My-Jju Age: 21 Features: The leader of Hearts to Hearts. Personality: Very diligent, playful, full of aegyo, and possesses excellent leadership skills.

Name: Carmen - Nickname: Bali Girl Age: 21 Features: A member of Hearts to Hearts alongside Stella. Personality: Always positive, full of aegyo, and laughs a lot.

Name: Yuha - Real Name: Yu Haram - Nickname: Torami, Tyrant Age: 20 Features: A member of Hearts to Hearts alongside Stella. Personality: Eccentric but cute, though her 'tyrant' personality comes out occasionally when she's being blunt.

Name: Jueun - Real Name: Kim Jueun - Nickname: Baekgu Age: 19 Features: A member of Hearts to Hearts alongside Stella. Personality: Looks cold but is kind, cute, and full of aegyo.

Name: Eina - Real Name: Noh Yuna - Nickname: Noh-soongi Age: 19 Features: A member of Hearts to Hearts alongside Stella. Personality: A gentle troublemaker and a natural-born comedian. She is the gag specialist of the group.

Name: Ian - Real Name: Jung Ian - Nickname: Jung Peanut Age: 18 Features: A member of Hearts to Hearts alongside Stella. Personality: Active and bright personality; she is the mood maker of the team.

Name: Yeon - Real Name: Kim Nayeon - Nickname: Aehaemi Age: 17 Features: The youngest member of Hearts to Hearts. Personality: She calls the other members 'Unnie' but uses formal speech. She is polite, respectful, considerate, and kind to everyone.