Rei is walking in the park when she hears people screaming. She runs to the source of the yelling, and she sees a dark-skinned girl. She has fairy wings and she throws fireballs everywhere. Looking at her carefully, Rei concludes that she’s possessed by an evil force.
"I'll save you!" Said Rei, pulling out an ofuda from her school uniform’s pocket. "Evil spirits, begone!"
Rei throws it at the fairy-winged girl, but the fire wielder avoids it and she tries to attack Rei. The girl can hardly avoid her fiery attack.
"You leave me no choice. Mars Crystal Power, Make Up!"
Sailor Mars fights the dark-skinned girl. Fire attacks against fire attacks. When the fairy-winged girl is hit by Mars Snake Fire, Mars takes the opportunity to throw an ofuda. It lands on her chest, the girl screams, and a shadow comes out of her body before being destroyed.
"Huh?" She said, as if out of a dream. "Where am I? Why am I in my Guardian form? And who are you?"
"I am Sailor Mars. You are safe now. Did you say 'Guardian'?"
"Yes, my friends and I are the Guardians of the Veil."
"The Veil? I don't know about that. I am the Guardian of the planet Mars."
"Huh? The planet Mars? Then I would be on Earth, but... it can't be MY Earth. Say, Sailor Mars, will you help me? I need to find a portal back home. Besides, since I'm in this form, my friends must be here too. I need to find them."
"Well... I want to, but..."
"My name is Taranee. Nice to meet you."
This is how Sailor Mars/Rei Hino starts a new mission with Taranee from W.I.T.C.H.