The training room pulsed with a restless quiet, its reinforced walls etched with glowing runes that flickered like nervous heartbeats. Jin stood at the center, his black blade Muramasa gripped tight, its cracked surface glinting with a hungry light. Across from him, Ryu's metal body shimmered, a faint hum rippling through his limbs as they glowed silver. Their teams lined the room—Jin's crew on the left, loud and rowdy, Ryu's on the right, tense but vocal—eyes locked on the duel, the air thick with anticipation. The fight from moments ago still burned in Jin's veins, his heart pounding with the thrill of matching Ryu blow for blow. This wasn't just training; it was a challenge to see who could push harder, shine brighter, and come out stronger.