In a vast frozen waste, twins Sou and Seiji have been fighting each other for millennia. Ms. Aki says that to change the world, they need the twins' "Reverse" power, and Nagara and Mizuho come to assist. Yamabiko questions Sakura, one of Mizuho's cats.
How is it possible...
...كيف يعقل
Warum haben wir uns so verändert,
nur wegen eines einzigen Haars?
¿Cómo es posible…
Pourquoi ce cheveu a-t-il
créé une telle différence ?
Como é possível...