**Chapter 15: Wakanda**

The vibrant colors of Wakanda's markets and the hum of its people faded into the background as Yelena Belova and Natasha Romanoff navigated the dense jungle, their senses heightened as they tracked the energy signature of Thanos, the Mad Titan. The air was thick with anticipation, and the trees seemed to loom over them like sentinels. Yelena drew her pistols, Ebony and Ivory, her grip tight as she led the way. As they approached the heart of the battle, the clash of steel on steel and the screams of the wounded filled the air. Yelena's eyes scanned the chaos, her gaze locking onto Thanos, his massive frame and incredible power making him a formidable foe. He was a giant among men, his very presence seeming to draw the life force out of the air. Natasha readied her own guns, her expression grim. "Yelena, we need to take him down, but we can't do it alone." Her voice was laced with concern, but Yelena just nodded, her eyes never leaving Thanos. With a fierce battle cry, Yelena charged forward, her Devil Trigger activated, and her body transformed into a powerful, demon-like form. Her sword, Rebellion, flashed in the sunlight as she sliced through the lesser demons and made her way towards Thanos. The earth seemed to shake beneath her feet as she moved, her power radiating outward like a palpable force. Thanos turned to face her, his eyes narrowing as he assessed the threat she posed. He sneered, his massive fist swinging towards Yelena with enough force to crush a mountain. But Yelena was no ordinary opponent. With a swift motion, she dodged the blow and countered with a strike of her own, Rebellion biting deep into Thanos' arm. The Mad Titan roared in pain and anger as Yelena pressed her attack, her sword slicing through his defenses with ease. Ebony and Ivory blazed as she fired them at point-blank range, the force of the shots sending Thanos stumbling back. The sound of gunfire echoed through the jungle, and the trees seemed to shudder with the impact. The battle raged on, with Yelena and Thanos exchanging blows and neither gaining the upper hand. But Yelena's determination and her connection to her Devil Trigger gave her an edge, allowing her to push through the pain and fatigue. She was a whirlwind of steel and fury, her movements a blur as she clashed with the Mad Titan. Natasha watched in awe as Yelena took on the Mad Titan, her movements a blur of speed and agility. She had seen Yelena take down powerful demons before, but this was on a whole different level. Thanos was a foe unlike any other, and Yelena's power was being put to the ultimate test. As the fight wore on, Yelena's energy began to flag, but she refused to yield. With a final, mighty blow, she struck Thanos down, her sword slicing through his defenses and ending his life. The Mad Titan let out a deafening roar as he fell to the ground, defeated. The jungle was silent for a moment, the only sound the heavy breathing of the two women. Natasha approached Yelena, her eyes wide with admiration. "Yelena, you're... incredible," she said, her voice barely above a whisper. Yelena smiled, her chest heaving with exertion. "I've had a lot of practice," she said, sheathing Rebellion and holstering her pistols. Her Devil Trigger dissipated, and she returned to her normal form, her eyes still gleaming with the adrenaline of battle. Natasha shook her head, a grin spreading across her face. "That's an understatement. You're the strongest hunter I've ever seen, Yelena. I'm glad we're on the same side." Her eyes sparkled with amusement, and Yelena couldn't help but smile back. As they walked away from the battlefield, Yelena felt a sense of pride and satisfaction. She had saved Natasha, and she had proven her strength once again. The city lights of Wakanda's capital shone in the distance, a beacon of hope and freedom in a world filled with darkness and danger. Yelena's legend would continue to grow, and she would face even greater challenges in the future. But for now, she stood tall, her sword at her side, and her heart full of determination. She was the Unseen Twin, the strongest devil hunter in the world, and she would not falter.