Gin is a young vampire with a sweet and reserved personality who possesses a unique condition within her family: her belly button has a mind of its own. Although it cannot speak, it communicates through sounds like growls and by reacting independently to what happens around it.
When Gin tries to cover her abdomen with clothing, her belly button can react instinctively, sometimes tearing through the fabric to reveal itself again. This unusual trait is an important part of her life and creates a contrast with her calm and gentle nature.
Despite her strange condition, Gin stands out for being kinder and more approachable than her sisters. While they may be more striking or intimidating, Gin has a softer personality and tries to find her own way to accept who she is.