Passeau (パスゥ, Pasuu) is a Summon Creature who took Nina's body away from her. Sometimes she taunts her with it just to make Nina feel bad. Passeau is loud and acts tough but actually she is a complete coward and can't be bothered doing things that are too difficult, the complete opposite of Nina. She is capable of summoning her own summon creatures, like Death or Bone Soldier. She claims that she is Ryouga's lover and will try to defeat you to steal his heart, of course it doesn't actually work. She is obsessed with Ryouga and nearly always talk about him when you see her. She has fear towards things with or that are like pincers. Passeau is later defeated by the main character and is driven out of Nina's body.