*Location - Outskirts of Gehhena District*

Sensei stood at the entrance of Gehenna, his mind racing. He had to find Nyx. The recent events had spiraled out of control, and she was the key to restoring balance. He quickly typed a message to Hina, the Head Perfect, and hit send.

Inside her office, Hina stared at her phone, puzzled. Sensei's message was brief, lacking the usual details. This was unlike him. She wondered what could be so urgent. Without wasting time, she replied, "I'll be there in a few minutes."

Moments later, Hina arrived at Gehenna. Sensei greeted her with a serious expression. "We need to talk. It's important," he said, leading her into the depths of Gehenna.

In the dimly lit office, Sensei wasted no time. "I need your help finding someone-Nyx."

Hina raised an eyebrow. "Who is that? Doesn't sound like a name someone would use in Kivotos."

"Nyx is a student at Trinity. Her recent actions have led to Nagisa's death and Seia losing her humanity. With Mika exiled from The Tea Party a month ago, Nyx is the only candidate left," Sensei explained.

Hina's eyes widened. "Wait, you want someone who could lose control at any moment? Someone who literally got Nagisa killed? To run Trinity?"

"Yes," Sensei replied. "It may be hard to believe, but if we don't find a candidate, two things might happen: Trinity will be closed temporarily, leaving students with nowhere to go, or it will collapse like SRT."

He paused, his voice heavy. "We need to find Nyx. After she disappeared, there are no leads."

Hina nodded. "I'll get in contact with Abydos."

Meanwhile, Nyx sat with Shiroko and the others when Hina's call came through. Hoshino answered, confusion evident on her face. "Why is she calling?" he muttered, glancing at Nyx.

Nyx had heard little about Hina, but she knew she was the second strongest in the world. However, if Nyx had nearly killed Mika, that might soon change.

Hoshino answered the call. "What is it?"

Hina's voice was calm but firm. "Sensei is looking for Nyx."

Hoshino looked at Nyx, who shook her head, signaling her not to reveal her location.

Hina continued, "I see. We'll meet at Abydos with Sensei to discuss the situation in an hour."

The call ended. Hoshino turned to Nyx. "What's going on?"

Nyx sighed. "I can't avoid it. I was only supposed to stay here for two weeks."

She explained her recent events, leading her to this point. Everyone was shocked. Ayane remarked, "That explains the explosion in Kivotos."

Nyx frowned. "How the hell did you see it from here?"

Ayane shrugged. "It's that powerful."

Hoshino asked about her Mystic. Nyx's expression darkened. "I don't understand my Mystic. All I know is that it will annihilate all things standing in my way."

She had a murderous look before calming down.

Hoshino, realizing Hina was here, asked if they could come with her. Everyone agreed, except Nyx, who said she couldn't bear going back to Trinity.

Just then, Sensei and Hina entered. Sensei was shocked to see Nyx.

Nyx crossed her arms. "I'm not coming back."

Sensei sat down, explaining the situation. "If Trinity crumbles, who knows what will happen."

Nyx tried to interject, but Sensei cut her off. "You need to come back. There are no options left."

Suddenly, they heard marching outside. They checked to see Kaiser Troops-an army of metal soldiers and tanks.

Hoshino sighed. "This isn't the time."

Shiroko grinned. "Time for a fight, then."

They all went out and got ready. Guns fired as Nyx watched. She had an insane look before rushing at the robots, slashing them with her scythe.

Hina watched in shock as the others moved out of the way. Nyx shot the tanks, causing explosions. She dodged bullets and slashed with her weapon. Hoshino muttered, "Is she this crazy?"

Hina replied, "I'm not sure..."

Nyx slashed through them all.

Then, Black Suit appeared. Dressed in a black suit, he looked at Nyx. "Well, well, well... if it isn't the god of Eradication and the end."

Nyx was confused. "The god of what?"

Black Suit smirked. "That Mystic of yours is impressive. You're lucky you're still sane; otherwise, everything beyond Kivotos and existence would end."

Hoshino's face darkened. "Why are you here?"

Black Suit chuckled. "I'm here to admire your destruction of existence. Mystics are more than one thinks."

Sensei stepped forward. "We need to go. There's no time for this."

Black Suit raised an eyebrow. "Nyx is a clear warning you shouldn't ignore. She's simply your end if left unchecked. All these failures could lead her to the truth. She's blinded by her own will."

Hoshino pointed his gun at him. "Shut up."

Suddenly, Binah, A demegration AI, appeared a few miles away. Nyx pointed her scythe at it. "What the hell is that?"

Black Suit sighed. "Seems it's my time to go."

He disappeared.

Sensei turned to the group. "There's no time for this."

Shiroko nodded. "We need to stop that damn thing."