What is this 'Dimensional Chat' ?

Chapter 31. When Darkness Descends

Satria goes back to the DxD world, his foot crunching softly against the familiar ground. Sit there, awaiting him, were two breathtakingly beautiful women: Kiyohime, her delicate features framed by flowing hair, and Valiana, her piercing gaze filled with mischief.  

Satria groaned inwardly. "How the hell did my life turn out like this?"

[Fatalis: Since you met the famous Truck-kun?]

Seated comfortably between Kiyohime and Valiana, Satria couldn’t help but sigh inwardly. Despite his efforts to keep things low-key, his life seemed determined to thrust him into absurdly dramatic situations.

Kiyohime clung to his arm, her head resting on his shoulder as she smiled dreamily. "My danna-sama, you’ve worked so hard. Why not let me pamper you today?"

Valiana smirked, tracing a finger along his other arm. "Don’t let her hog all the attention, Satria. I’m here too, you know." 

Satria groaned softly, though a mischievous smirk tugged at his lips. "If I didn’t know better, I’d think you two were plotting against me."

Kiyohime pouted. "Plotting? Against you? Never!"

Valiana chuckled, leaning closer. "And if we were, what would you do about it?"

Satria turned his attention to the screen, watching Issei’s duel with Riser Phoenix.

The sight brought memories rushing back of their intense, whirlwind training session just days prior.

Flashback

Three days earlier, Issei stood in the forest near Kuoh Academy, drenched in sweat. Before him, Satria loomed like an unyielding wall, holding a handful of small stones.

"You need more than raw power to win, Issei," Satria began, his tone sharp but instructive. "Strength without control is meaningless. Precision, discipline, and strategy—that’s what separates victors from losers."

Issei wiped his brow nervously. "Uh, what’s with the stones?"

Satria smirked, his hand beginning to vibrate ominously. "Dodge them, or I’ll make you regret it. Balance Breaker or not, this will hurt."

Before Issei could protest, Satria hurled the first stone with the speed of light. It slammed into Issei’s armor, shattering a portion of it.

"What the—?!" Issei gasped, clutching his stomach.

"How is a mere stone piercing my armor?!" Ddraig roared in disbelief.

Satria’s voice remained calm, almost clinical. "At high velocity, even a stone can carry the force of a meteor. It’s basic physics: mass-energy equivalence. Now, stand up!"

Gritting his teeth, Issei rose. "Promotion: Rook!" he declared.

Hours passed. Issei’s body was covered in bruises, but his resolve remained unbroken. Stone after stone slammed into him, and he failed time and again to dodge or deflect them.

Finally, as Satria prepared to launch another, Issei shouted: "Boost! BOOST! (15X)."

With a roar, Issei punched the stone mid-air, shattering it into fragments. He turned triumphantly, only for another stone to slam into his back.

"AGHH!"

Satria stood over him, arms crossed. "Remember this, Issei: strength alone isn’t enough. A wise fighter listens, observes, and strategizes. Learn to read your enemy. Foolish bravery will only get you killed."

The sun bathed Satria in a golden glow, his presence almost divine.

"Why do I feel... drawn to him?" Ddraig murmured.