They get married and they start travelling.
They are now in the nature kingdom, which is a kingdom of nature.
Kingdom Location: Nature Kingdom
They were walking around in a forest and they see some nature monsters being attacked by a huge serpent water monster that is made from water with one red eye, and 10 tails called a Ten Tail Water Serpent.
"Let's help them," said Aito, and he fuses with Hana.
They fly in the air and they shoot streams of fire at the Ten Tail Water Serpent. The Ten Tail Water Serpent flees into the ocean, but just before that the Ten Tailed Water Serpent shot a water needle at Hana and Aito when they're fused together.
They pass out.
Aito sees darkness.
"Where am I?" asked Aito and Hana appears.
"I believe that we are in a deep sleep, but something weird, it's as if we're fusing more," said Hana.
"What do you mean?" asked Aito.
"I mean that we are fusing to another level it's like we're mutating into something else," said Hana.
"Is this normal?" asked Aito.
"No, it's not only science could do this. Im guessing that monster we fought shot a serum into our body," said Hana with a worried face.
"You look worried," said Aito.
"I am, I have no idea what the serum will exactly do beacuse it might kill us," said Hana and Aito thinks.
"I believe I know someone who might be able to help Asuka," said Aito.
"Yes, Asuka might be able to help," said Hana, and they wake up.
"You're finally awake," said Chizu.
"Chizu me and Hana are going we will be back soon," said Aito and they teleport to the dimension and they go to Asuka's room.
"Asuka We Need Help!" said Aito.
"Wait, is that you Aito, but how are you fused like this in this dimension?" asked Asuka confused how Aito could be fused with Hana with their body changed in this dimension.
"We don't know, but we can't defuse," said Aito.
"Let me speak with Hana," said Asuka.
"A needle hit us and I believe a serum was injected into us. The serum seems to be mutating us," said Hana.
"Come with me," said Asuka, and they go to a lab.
Asuka scans Hana and Aito.
"This serum is defiantly mutating you, but it's mutating Aito with your DNA," said Asuka.
"What does that mean?" asked Hana, worried that something is going to happen to Aito.
"It means that soon Aito will have some of your DNA probably turning him into a hybrid of human and monster," said Asuka.
"Is there something that you can do?" asked Hana.
"No there's nothing I can do, but I recommend that you two stay in Chaos World well this is happening because Aito will need that world's power," said Asuka knowing that monsters need to absorb the power from Chaos World before they are born.
"Right because he could die from the lack of power when he's changing," said Hana, and she uses the watch to teleport to Chaos World in the forest where before.
They go to where Chizu and Daiki are.
"Where were you?" asked Chizu.
"We were getting some information about what's happening. It turns out that me and Aito were hit with a needle that had a serum inside it. The serum is changing Aito's DNA to have my DNA," said Hana.
"So you're saying that he's going to be a monster like us?" asked Chizu with a happy tone.
"Sort of, he will be a hybrid of human and monster," said Hana, and she just realized that Aito is sleeping.
"Listen, I need some rest well Aito is changing," said Hana.
"Sure, I'll bring you to a bed," said Chizu, and Hana lays down on a bed.
After awhile Hana wakes up to see Aito's beside her.
"He looks the same, but I can tell that he's different," said Hana and black dragon wings, black dragon horns, and a black dragon tail appears on Aito.
"So he can transform between looking human and looking like a hybrid," said Hana, and Aito wakes up feeling different.
Aito sees his tail, wings, and he feels horns on his head.
"AHHHHH!!!!" Aito screams, but Hana covers his mouth with her hand.
"Stop screaming this is just what you are now," said Hana.
"What happened to me?" asked Aito when Hana stops covering his mouth.
"You have finished changing, but it seems that you can hide your dragon parts and look human," said Hana, and she is blushing.
"Is something wrong?" asked Aito.
"You just look so cute with those dragon parts," said Hana.
"Thanks, I guess I'll stay in this form for awhile," said Aito and they go outside.
Chizu sees Aito, and she hugs him into her breasts.
"Your ok," said Chizu and she stops hugging Aito beacuse he's blushing.
"Yes im ok," said Aito and he passes out. Chizu catches him in her arms.
"What's Happening To Him?!" asked Chizu worriedly.
"He's just tired, going through this amount of change will put a strain on his body," said Hana, and she takes him to the bed.
Hana walks out of the bedroom.
"So how is he doing?" asked Chizu.
"Is he ok?" asked Daiki.
"He will wake up soon," said Hana, and she hears screams coming from outside.
They go outside to see the Ten Tail Water Serpent destroying the homes.
Hana tries to fly, but she can't.
"Listen, I need some time before I can fight," said Hana.
"Then we will fight," said Chizu, and they start fighting. Chizu and Daiki barly damage the Ten Tail Water Serpent.