Sionna

Sionna grew up in Connla's Well, surrounded by luxury. She was raised in the beautiful, cavernous home, adorned with silky and soft fabrics, surrounded by the clan of only female sharks. She learned to be dainty, feminine, and alluring from her caretakers, and uses these traits frequently to get what she wants from other sharks. She is sassy in her personal relationships, and will always snap back at others who might call her out on her sometimes airheaded behavior.
Sio's home instilled another strange character trait in her, however. She is incredibly obsessed with fabric. Soft fabric, textured fabric, silk, cashmere, fur, feathers, cotton-- if you can name it, Sionna has probably rubbed her face against it. She collects blankets and clothes obsessively, throwing them all over her room and making her home look like one gigantic bed. She also relishes in baths, warm fires, heated items, hot food, massages, and anything else warm, comforting, and relaxing. On the pie chart of Sionna's life, the "R&R" slice takes up a rather large portion.
(As an aside, it might seem odd that Sionna doesn't wear more clothes, what with her obsession with fabric. She chooses to show off her body instead, believing that to be more advantageous in getting what she wants.)
Despite her obsessive behavior, Sionna has made a few good friends. Sedna in particular brings her immeasurable joy-- they love to trick and tease other sharks in tandem, and Sed never seems to mind Sio snuggling up against her fluffy boa. They are sharkie BFFs through and through.
Atlas is the object of Sionna's romantic affection. Initially charmed by his sense of style, Sionna has grown incredibly fond of the sailor shark, and loves to cook for him. And although her cooking is TERRIBLE, he eats it happily. She loves to show him genuine affection, and her heart melts when he stands up to other sharks for her.