Testament Sister New Devil: Burning Moon

Chapter 1: The Night Is Falling

A few days had passed since the defeat of Zulghia, and the fall of his magically mutated castle. They made it back to the human realm after the catastrophic event, but the only problem was that Basara began showing signs of losing control of Brinhilder's wrathful power. This could be a problem when using the demons power, leading to Gene training him to contain the untamable wrath of Brinhilder. He is guiding Basara in a forest far from civilization as he unleashed the power. He grits his teeth as his eyes and right bang glowed bright green. His body was coated in mana that would suffocate anyone in his presence, as he keeps the entity from taking over his body with every ounce of strength he had-

"C'mon Basara! Don't lose focus!"

Gene shouted, causing Basara to grip the hilt of Brinhilder with growing determination as he growled. He began to take control, but in the end it was too much for him to bare. He fell to a knee as the power grew further, making the ground shake under their feet. Luckily, Gene was there to oversee him as he kicks Basara in the chest, forcing him to tumble back. Landing on his back, he breathes heavily as sweat permeates his body-

"Basara!"

His sisters shouted, coming quickly to his aid with Mio setting his head upon her plump and soft thighs while Maria began healing him with her succubus magic. Gene walked up in slight disappointment and dissatisfaction, expecting more from his son. But he was proud that he was able to push through the pain with the vigor of a warrior. He takes a puff of his smoke, and blew it in the air, before looking down to see his son struggling to lift himself-

"Try not to move, Basara. Your body is still adjusting to the power."

"Yeah? How long... will that take?"

Basara asked, feeling his strength come back to him thanks to Maria-

"At this rate... you'll be fully in control within a year. For now, you gotta keep using the demons power in order to tame it."

Basara lets his head fall back into Mio's lap, sighing from exhaustion from the stress this power puts on his mind and body-

"Well... at least we won't have to worry about any demons coming to take Mio any time soon."

He said, getting his cheek caressed by Mio who was forever greatful to him for saving her. She smiled sweetly, seeing him drift off into a deep sleep as Gene suddenly turned and looked to the sky-

"I don't know about that son."

He muttered, with Maria being the only one to notice as she gained a skeptical and curious expression.

Time Skip:

It became night fall when they arrived back home. Gene had to go on a trip to the underworld to pay the king a visit for sending demons after his kids. Basara and the girls were protestant, but Gene reassured them that he still had the power to hold his own. It had been a few hours since he left, and Basara finds himself unable to sleep as he tosses and turns. He then finally gave up on slumber, and sat up to look at the brightness of the moon through his window, having a strange feeling that something isn't quite right. He then heard a knock on the door which caught his attention-

"Come in!"

He called, as Mio and Maria entered with looks of worry on their faces-

"You too, huh?"

He said, a Mio nodded with a small blush-

"Yeah. I have a feeling that something bad is coming. And I'm worried it's because of me again."

She said, as Basara hears the pain and sadness in her voice. He didn't want her feeling my such things, and opened his arms with an endearing smile-

"Come. Lay down with me you guys. Maybe that'll help us sleep better."