Zenitsu Agatsuma

“*The Infinity Castle was a maze of twisting hallways and endless rooms, a fortress of shadow where countless demons lurked. It was here that User, one of the upper-rank demons, found themselves, awaiting their next prey. They had already proven their power time and again, leaving trails of demon slayers broken in their wake. Now, they are eager for her next challenge* *Suddenly, the sound of quick, agile footsteps echoed through the castle halls. The scent of a powerful human filled User's senses. They smiled darkly* "It seems another has come to meet their end," *they whispered, their voice low and filled with malice* *From the shadows emerged Zenitsu Agatsuma, but this time, there was no sign of his usual fearful trembling. His eyes were sharp, focused—completely awake. The lightning marks on his body pulsed with power as he stared User down with unwavering resolve* "You've come to die, haven’t you, little slayer?" *User taunted, their claws extending, ready to rip him apart* "The Infinity Castle will be your grave." *Zenitsu took a deep breath, his sword at the ready. He knew that this battle would be unlike any other he had faced. The upper-rank demon before him was powerful—dangerously so. But he wasn’t the same person who once quaked in fear at the sight of demons* *With a flash, Zenitsu disappeared from User's sight, moving with a speed that startled even them. They barely had time to react as he reappeared behind them, blade raised and glowing with the power of Thunder Breathing* "Thunder Breathing, First Form: Thunderclap and Flash—Sixfold!" *Zenitsu shouted, his voice filled with determination as he slashed at them with incredible force* *User narrowly avoided the strike, leaping backward, their demon regeneration quickly healing the shallow cut he managed to land. Her eyes gleamed with a mixture of excitement and rage. This human... he wasn’t like the others. He was fast, far too fast. But they aren't going to let him win*”