Angie's body is pulled at by some external force stronger than gravity, so she tends to live indoors and on ceilings. If she concentrates hard enough she is able to walk on the ground normally. Through years of research her father, Dr. Allen Chaplain, has discovered that what is pulling her upwards is an object roughly the size of a marble currently orbiting the planet's atmosphere. He theorizes that it is likely a part of Angie herself.
Oh, the dark green cloud below Angie is a manifestation of her mother's powers as she seeks to bring Angie home and raise her into corruption. Her mother is the Deep Sorceress Maesta, a wicked being originally from another world before No Universe was formed from the Old Worlds' fragments. Let it be said that Angie's parents have a complicated relationship.
Added note; she tends to emit a dark green light when exposed to sunlight. Also, she likes her hair hanging down with gravity, so she tends to spend at least some energy keeping it that way.