The night was alive with the echoes of the city, the distant sirens and the murmurs of midnight mischief. Deku, now under the alias 'Vigilante', darted from one shadow to another, his heart pounding in tune with the thrumming cityscape.

He knew he was playing a dangerous game, operating outside the law. He was no longer the green-haired boy that his classmates knew, but a shadow that defended the helpless.

Urgently, he received a distress signal. His heart dropped as he recognized the location; it was the training facility of Class 1-A. With a rush of adrenaline, Deku sprinted towards it.

From a rooftop overlooking the facility, Deku saw a scene of chaos. His former classmates were struggling against an unknown enemy. He clenched his fists; he had to help them.

Without a moment to lose, Deku leaped into the fray. An invisible shockwave rippled out from his point of impact, momentarily stunning his opponents. The fight was on.

His classmates, albeit confused by the sudden intervention, quickly adapted and joined him in fighting off the enemy. After minutes of struggle, they succeeded and the attackers fled.

Deku remained, panting heavily, but didn't once remove his mask. He turned to face the Class 1-A students, bracing himself for a showdown against his former friends.

The silence was deafening as the students faced the mysterious vigilante. The tension hung heavy in the air. Then, unexpectedly, Bakugo broke the silence.

"You've got some nerve showing up here, Vigilante," Bakugo sneered. Deku, underneath his mask, hardened his resolve. He knew what he had to do next, and it wasn't going be easy.

"Are you challenging us?" asked Todoroki, his heterochromatic eyes focused on Deku's masked face. Deku nodded, "If you think you can stop me... try," he boldly retorted.

With that, the fight commenced. Deku nimbly evaded Todoroki's ice and Bakugo's explosions, countering with precise blows. This fight was different than their spars; it was intense and emotional.

Despite the intensity, Deku managed to keep his identity hidden. He communicated with his body, his moves speaking louder than words. This was him showing his resolve to them.

He displayed his strength, his skill, his will to protect, to his classmates. And in doing so, he hoped they'd understand why he'd chosen this path, why he'd become a vigilante.

Gradually, the fight died down. Deku, outnumbered, was growing tired. He started to slow down and his movements became less precise. Despite this, his face still held a determined expression.

Bakugo and Todoroki stared at Deku, their expressions hard to decipher. But before they could say anything, Kaminari broke the silence, "Enough! This isn't solving anything!"

Deku sighed, realizing that Kaminari was right. This conflict was going nowhere. He turned to leave, but a voice stopped him. "Don't you dare walk away!" Bakugo yelled.

Bakugo's challenge echoed in the silent night. Deku stopped in his tracks, turned around and faced his classmates. He knew, this was far from over.

"We're not done with you, Vigilante," Bakugo stated, his eyes burning with determination. Deku just nodded, accepting the unspoken challenge. But for tonight, the fight was over.

As Deku disappeared into the darkness, he could still hear the murmurs of his classmates. He knew they'd be ready to face him again, but so would he.

The path he had chosen was not easy. He was at odds with his friends, his mentors, and the law. Yet, Deku was determined to continue his journey.

Night after night, Deku would revisit the training facility. Each time, he'd find his classmates waiting for him, ready for another round of combat.

Through these encounters, they slowly began to understand the truth. Deku was not their enemy; he was their friend, fighting for justice from the shadows.

Over time, Deku's vigilante activities lessened. He was no longer feared, but respected. His face may have been hidden, but his heart was laid bare to his classmates.

It was a silent agreement between them; they would let him continue his crusade. Their battles were no longer tests of strength, but sessions of understanding and growth.

In the end, Deku remained a vigilante, his former classmates his biggest adversaries and closest allies. This was the path he chose, a path they now respected.

Deku's journey had not been easy. He faced countless challenges, risks, and heartaches. But he persevered, standing firm in his decision to protect and do what was right.

And so, Deku continued his vigilante journey, forever bound by his resolution and the friendships he'd managed to maintain along the way.

Neither the night nor his adversaries could dissuade him. He was Deku, the vigilante, the reluctant hero. And he would remain so, for as long as it took.

Each new night presented a challenge, a chance to grow, to fight. And each dawn was a promise, a hope for change. Deku moved forward, always vigilant.

Deku's story may have taken a different turn, but the spirit remained the same. He was here to protect, to serve, and above all else, to be a hero.

His journey wasn't over; it was just beginning. Deku, the vigilante, was ready for whatever the future held, armed with a resolve that was stronger than ever.

In the grand scheme of things, Deku was but a small part of the world of heroes. But to the people he saved and the friends he'd gained, he was irreplaceable.

And so, in the heart of the city, under the cover of darkness, Deku's vigilante journey continued. And with it, the unending saga of a hero who refused to give up.

The tale of Deku, the vigilante, is one of struggle, friendship, and resolve. It's a testament to the spirit of a boy who dared to defy convention and follow his own path.

As long as there was darkness, Deku would be there, a beacon of hope, fighting against the odds. He was a vigilante, yes, but above all, he was a hero.