A short amount of time passed and then Kuwabara was captured. Seaman led Nanashi, Kurama, Hiei, Yusuke, Kaito, Genkai, and Yanagisawa to the cave with the breach between the two worlds in it. The wind serpent stayed out around Nanashi's neck, over two times it's original size, but felt weightless. It all had developed cobra like looks; rattling tail and hood head. Kurama figured being so near the breach was making it stronger; and Nanashi as well in turn.
Kurama had explained earlier: "The element serpents were created to defend humans from demons who got into the world. Since stronger demons could get through the breach now, the wind serpent compensated for the shift. Eating the viruses helped even more. It's kind like a gold fish growing in size based on its environment. The bigger the environment, the bigger the goldfish. The more dangerous the environment, the more powerful the wind serpent."
The wind serpent was happy to hear about that; even if he was compared to a goldfish.
The wind serpent, however, was not happy to see Hiei had rejoined the team. He raised his head up and rattled his tail. Nanashi did not stop him. Hiei drew his sword.
"Quit fighting you two," Yusuke said to both of them. I don't care what the problem is between you two, but you need to focus and work together. We've got to save Kuwabara."
In response, Hiei sheathed his sword and Nanashi and the wind serpent backed down. The wind serpent settled around her shoulders and arms. An uneasy detente settled between them.
The group went into the cave and came across a very young psychic named Gamemaker. 'He's way too young,' Nanashi sub-vocalized to the wind serpent. He agreed. When Gamemaker challenged them to beat him at video games in order to get out of his territory, Nanashi opted out. She was not interested in video games and preferred not to fight a small child. To her surprise, Hiei also opted out. He also chose to nap while the games commenced. He slept sitting up, hand on his sword. Nanashi wondered what would happen if he had another nightmare.
Nanashi stood back as the games occurred: Seaman winning tennis, Genkai winning battleship, Kaito loosing at trivia, Yusuke winning a fighting game, and then, worst of all, Kurama winning a block like game that led to the death of Gamemaker. Nanashi watched the whole thing in mute horror. When Hiei woke up and asked what happened, no one responded at first. The wind serpent wanted to be the one to explain. Nanashi and Hiei were close enough for the wind serpent to sidle over to him, push at his bandanna, and gestured for him to read his mind. Hiei did so and learned more than he bargained for, but got the story of what happened. While this occurred, Nanashi was privy to what the wind serpent said, but everyone else was not. A heavy silence hung in the air; then Nanashi, Hiei, Kurama, Seaman, and Yusuke continued down the tunnel. The wind serpent continued to grow as they journeyed; now taking on a dragon like head, no limbs, and hanging below both of her arms. He was thicker around too; about the same thickness as Nanashi's upper arms.
When the group reach the pond, they saw Kuwabara tied in a boat near the almost opened breach. At the sight of it, the wind serpent let out a sound that was half roar, half hiss.
The next fight happened between Kurama and Gourmet. Kurama figured out that the Elder Toguro brother really controlled the body. Kurama trapped him into a sinning tree.
Kuwabara was freed, but then captured again, along with Nanashi, Kurama, Hiei, and Seaman by Gatekeeper; leaving Yusuke to face Sensui and his split personalities all on his own. None of them could escape from the Gatekeeper. Koenma had arrived, but could not stop Sensui either. When the battle between Yusuke and Sensui turned against Yusuke, Kuwabara armed up his dimension sword and freed himself and the others. However, Yusuke was killed before they could help him.
Nanashi screamed and cried in rage and grief. Her response took the wind serpent to a new level. It grew to an over six foot long dragon-snake hybrid; with wings, but no limbs. He was angry and wanted vengeance. Nanashi willed the wind dragon to stop Sensui's ability to breathe. It worked, but he was still able to dodge Hiei's dragon of the darkness flame. Sensui fled through the breach. Once in the breach, Nanashi could no longer keep her hold on his lungs.
'Take my wings,' the wind serpent commanded. With that, Nanashi took his wings and he brought himself down into a hand and a half, long handle battle ax. 'We are complete,' they thought together. With that, Nanashi flew, leading the others into the breach. She left them behind easily. When they reached the barrier, Nanashi stopped. Sensui was just across the barrier. 'What are you waiting for?!' the wind dragon roared.
"The others!" she shouted out loud in response. She reached to choke him again, but she could not do so between the barriers.
When the others arrived, they stopped with her. Kuwabara sliced the barrier open with his dimension sword so as to allow Yuko Kurama and Hiei to make it through. Once they three were in, Nanashi followed them and passed them easily.
Nanashi reached Sensui first and kept him from breathing while striving to strike him with her ax. He could fight back even though he could not breathe. Eventually he defeated her, knocking her out of the way and into a near by tree while the others each attacked him.
Much to Nanashi's and everyone else surprise, Yusuke arrived and defeated Sensui. He looked different; monstrous really. Itsuki took Sensui away before anyone could stop him. The group returned to the human world. Once through the breach, the wind dragon took back its wings and hid itself away. Nanashi did not have enough energy left to keep him out anymore.
Without the wind dragon, three members from the spirit defense grabbed her from behind. She struggled and growled, feeling an after affect from the wind dragon. Yusuke yelled at them to let her go.
The leader refused. "We need to see if your relative is also part demon," he explained. "It won't take long. She'll have to come with us-"
He stopped talking when he noticed a sword angled a hair's breadth away from slicing through his neck and chest. "She's not going anywhere," Hiei pronounced. His bandanna was still off and he was reading the leader's mind. "You know she's fully human already. You mean to conscript her onto your team instead. Someone who can keep Yusuke's demon nature in check. If you still want her, you can make her the new leader. The other one is soon to be disposed of."
"Let her go," the leader ordered. The three team members did so. She slapped all three of them in the face. Hiei took his sword from the leader's neck and chest.
Nanashi felt the wind dragon stir in her mind. He had found a new found respect for Hiei.