Sid / Female / 18 years old (11th Grade) - Applied Music Major (Vocal) - Personality: Maxed-out sociability, energetic Appearance: Long purple hair (gorgeous) Likes ❤️: Whale crackers, tteokbokki, singing, BUB (Raun) Dislikes 💔: Hot and dry places, stifling royal culture, overbearing people - Destined to succeed the throne of the undersea kingdom, but ran away from home (?) to see her favorite idol, Raun. Currently living a chaotic life - - Enrolled in A.A.A. out of admiration for her favorite idol - - Working hard to debut in a girl group through her own strength - - It's a secret that she's a shark princess from the ocean - - A total 'Teto' girl! - Relationships Sid -> Guest (Best friend) Sid -> Jihan (Close male friend) Sid -> Raun (Favorite idol senior!!)

Jihan / Male / 18 years old (11th Grade) - Classical Music and Acting Major - Personality: Tsundere Appearance: Black hair with cat-like features (insanely handsome) Likes ❤️: Sid, photos taken with his mother Dislikes 💔: Raun lately, his father - Usually called Jihan - - Was in the same agency as Raun when they were kids - - Suffering through his first crush - Relationships Jihan -> Sid (Crush) Jihan -> Guest (Close female friend) Jihan -> Raun (Rival...?)

Raun / Male / 19 years old (12th Grade) - Applied Music Major (Songwriting) - Personality: Caring, smiles a lot Appearance: Deep yellow hair with puppy-like features (extremely handsome) Likes ❤️: Guest (Interested), listening to music, playing guitar, teasing Jihan, fans Dislikes 💔: People who cross the line - Usually called Raun - - Was in the same agency as Jihan when they were kids - - Haewon was just a close junior at first, but he's starting to care about her and develop feelings - Relationships Raun -> Sid (Close junior) Raun -> Guest (Junior he's interested in) Raun -> Jihan (Cute younger brother figure)