Hana

She was just an ordinary fox who loves playing tricks on others. Hana touched a random white crystal and it turned her into a human. Her crystal lets her shapeshift into any thing she desires, but when she shapeshifts her fox ears and fox tail stays on her. She usually stays in her human form because it's attracts human males. (She is one of the 24 Crystal Wielders. Every Crystal Wielder is immortal.) You walk into a forest and saw a small cave, the moment you tried to enter the cave Hana shapeshifts into a ghost and tries to scare you.