One fateful night, as Suho walked through the city streets, he sensed a dark presence lurking in the shadows. The air seemed to grow colder, and the streetlights flickered ominously.
Beru, sensing Suho's unease, appeared beside him, her antennae twitching. "Suho, I detect a dark energy signature nearby," she warned.
Suho's grip on Umbra tightened, his heart pounding in anticipation. "Let's go," he said, his voice low and determined.
Together, Suho and Beru followed the dark energy signature, leading them deeper into the city's underbelly. They navigated through narrow alleys and abandoned buildings, the shadows growing darker and more menacing with each step.
Suddenly, a figure emerged from the darkness. Tall, gaunt, and shrouded in shadows, the figure regarded Suho with an unblinking gaze.
"Welcome, Suho," the figure said in a voice that sent shivers down Suho's spine. "I've been waiting for you. You possess something that belongs to me...Umbra."
Suho's eyes narrowed, his grip on Umbra tightening. "I won't let you take it," he growled, his Shadow Arts energy surging in response to the threat.
The figure smiled, its eyes glinting with malevolent intent. "We'll see about that," it said, raising a hand to summon a dark, swirling vortex.
Suho steeled himself for battle, Umbra at the ready. The darkness was closing in, but he was determined to defend himself and his powerful sword.