Bell is the "daughter" (The reason for the quotation marks will be explained in a later section of this page.) of Flitten and Sen. She's a bit cutesy and lighthearted in nature. Her third eye is more of a fur mark than anything else.

Origin-like thing

To be honest, Bell is actually a clone of Flitten that was given a different appearence and conscience, just like her "brother", Gray, is a clone of Sen.(This is also why she looks almost nothing like Flitten or Sen)