*Location - Trinity General School*

In the wake of recent turmoil, Trinity General School faced a surge in crime and unrest. Mika Misono, once exiled from the esteemed Tea Party, found herself reinstated due to the tragic death of Nagisa Kirifuji and the mysterious disappearance of Seia Yurizono. The weight of leadership pressed heavily upon her as she sat in her cluttered office, fatigue evident in her disheveled appearance.

A soft knock interrupted her thoughts. Opening the door, Mika was greeted by Koharu Shimoe, whose eyes reflected concern upon seeing Mika's exhausted state.

"Mika, how are you holding up?" Koharu inquired gently.

Mika sighed, rubbing her temples. "Ever since Nagisa sacrificed herself to save me, everything's been falling apart. Seia's gone missing, and Trinity... it's crumbling before my eyes."

Koharu placed a reassuring hand on Mika's shoulder. "You can't shoulder all this alone. Rest is essential; without it, you can't lead effectively."

"But if I let my guard down, even for a moment, something terrible could happen," Mika protested. "Trinity is vulnerable, and I'm not in any shape to defend it. The battle with Seia left me with injuries I can't ignore."

"Then let me help," Koharu insisted. "We all want to see Trinity thrive again."

Mika's gaze softened. "I appreciate it, Koharu. Truly. But happiness feels like a distant memory. Everything's spiraling downward."

Meanwhile, Rio Tsukatsuki contacted Yuuka Hayase to discuss recent alarming events. "Someone impersonated me to lure the Game Development Department into a trap," Rio explained. "They targeted Arisu, and in the chaos, she somehow manifested Kei's presence. But Kei is gone; this doesn't make sense. And the woman pursuing Arisu... she's hiding something."

Yuuka nodded thoughtfully. "I'll inform Sensei immediately. We need to get to the bottom of this."

In the infirmary, Arisu sat beside Momoi, who lay unconscious, her injuries severe. Yuzu sat nearby, her expression a mix of worry and sorrow.

Back at Trinity, Mika stared at her phone, anxiously awaiting any news about Seia. Her thoughts drifted to a recent memory: Seia, tears streaming down her face, embracing Sensei before vanishing in a flash of light. Nyx's bewildered exclamation echoed in her mind, but Mika had been too stunned to react.

Now, alone in her office, Mika's eyes fell upon a photograph of herself with Nagisa. Regret gnawed at her. "How did I let jealousy consume me? Challenging Nyx was foolish."

She turned to the window, the weight of her mistakes pressing heavily upon her.

At Abydos, Nyx sat in an empty classroom, dark circles under her eyes betraying countless sleepless nights. Her mind raced, replaying the events that had led to this point. "Did everything really start with that accidental death? Is it all that simple?"

Elsewhere, Seia Yurizono sat across from Black Suit. His voice was calm but insistent. "Have you considered our proposal?"

Seia nodded solemnly. "I'll allow the injection of Salvation. I can't bear the thought of anyone else getting hurt. My visions of Kivotos's destruction by 'Anubis' are too vivid to ignore."

Black Suit leaned forward, a faint smile playing on his lips. "If your dreams foretell the future, then this is the perfect time to proceed."

As Seia prepared for the procedure, a sense of foreboding settled over her. She whispered to herself, "I hope this is the right choice."

Seia sat restrained, the cold metal of the chains pressing against her skin. The room was dimly lit, casting long shadows that danced with the flickering light. The door creaked open, and the figure known only as Black Suit entered, holding a syringe filled with a shimmering, dark liquid.

"Are you certain about this?" he inquired, his voice devoid of emotion.

Without hesitation, Seia nodded. Black Suit approached, the syringe gleaming ominously under the sparse lighting. He inserted the needle into her arm, and the liquid coursed into her veins.

For a moment, there was silence. Then, arcs of magenta lightning crackled around her, illuminating the room with an eerie glow. Her attire transformed: a black dress with dark yellow accents draped elegantly over her form. In one hand, a TAC-50 sniper rifle materialized; in the other, a double-edged black scythe.

Her hair flowed freely, the ends now tinged with black. Her right eye gleamed a deep magenta, while the left remained its original hue. A calm smile played on her lips as she surveyed her transformed self. The chains that once bound her crumbled to dust, unable to contain the newfound power emanating from within.

Black Suit observed with a satisfied expression. "It appears the transformation is complete."

Seia took a deep breath, feeling the surge of energy coursing through her. "They mustn't know," she murmured. "Not yet. They wouldn't understand."