Chapter 4: The Blade That Cuts Fate

The morning air was crisp, the scent of dew still lingering as Ren stood in the courtyard, a wooden training sword in hand. Across from him, Master Takeda planted his cane firmly into the ground.

"The Shadow Fang Sword Style is built on speed, precision, and unpredictability," the old master explained. "It is not the strongest style, nor the most aggressive—but in the hands of a true swordsman, it is deadly."

Ren tightened his grip on the wooden blade. His past self had relied on knives, quick strikes, and ambushes. But this world required something more.

"Show me your stance," Takeda commanded.

Ren raised his sword. The moment he moved, Takeda's cane lashed out like a whip—striking his wrist with a sharp crack! Ren hissed in pain, but he didn't flinch.

"Too stiff," Takeda said. "A sword is not a hammer. It flows like water but strikes like lightning. Again."

Ren adjusted, lowering his center of gravity. Takeda circled him, watching with sharp eyes.

"Better. Now—strike."

Ren lunged forward, aiming a downward slash. But in an instant, Takeda's cane blurred, knocking his sword aside effortlessly. Before Ren could react, the old master's strike stopped inches from his forehead.

"Dead," Takeda said flatly.

Ren gritted his teeth. He had spent his past life dodging bullets and slitting throats, yet here, he was nothing but a beginner. But instead of frustration, excitement burned within him.

"I will master this."

---

Enter the Rival: Ryuji of the Crimson Fang

Just as training resumed, a voice cut through the air.

"So this is the so-called heir of the Katsuragi Clan?"

Ren turned to see a tall, muscular young man standing at the entrance to the courtyard. His dark red hair was tied back, and his eyes gleamed with confidence. At his hip rested a curved sword, its sheath adorned with intricate Murim symbols.

"Katsuragi Ren," the young man smirked. "I am Ryuji of the Crimson Fang Clan. And I have come to see if you are worthy of your name."

Master Takeda sighed. "Ryuji... You never change."

Haruto, who had been observing, narrowed his eyes. "The Crimson Fang Clan... So you've come to challenge my son?"

Ryuji nodded. "It's only natural. Our clans were once rivals. But now, the Katsuragi Clan has fallen into disgrace. If your son is truly your heir, he should prove it with his blade."

Ren met Ryuji's gaze. There was no arrogance—only expectation.

A challenge.

Ren exhaled, rolling his shoulders. His body was still new to this world, his skills unpolished. But an assassin never backed down from a fight.

"Fine," Ren said, stepping forward. "I'll show you that the Katsuragi name isn't dead yet."

Ryuji grinned, drawing his sword in a single fluid motion. "Then come, heir of Katsuragi. Let's see if your blade is sharp enough to stand in Murim."