Class 1-A had gathered for another day of training. Shota Aizawa, their teacher, stood at the front, giving instructions. A strange boulder stood ominously in the training field.

"Today, we're training with this," Aizawa said, pointing at the boulder. His gaze then shifted to Denki Kaminari, who was displaying a confident grin.

"This will be fun!" Kaminari declared, charging towards the boulder, electricity crackling in his hands. But something unexpected happened.

The moment Kaminari's electricity hit the boulder, it began to shake violently. It seemed to have an aversion to the electrical charge.

The boulder started to glow and levitate, before it sent out a shockwave that knocked Kaminari off his feet. Class 1-A gasped collectively.

"Kaminari!" Izuku Midoriya cried out, rushing forward to check on his friend. But the boulder had other plans.

It started chasing after Kaminari, who was stumbling to get away. The electricity-hating boulder was relentless in its pursuit.

"Kaminari, keep away from it!" Aizawa ordered, watching the scene unfold with a serious expression. But Kaminari was too panicked to listen.

"Help! Somebody, help!" Kaminari pleaded, running away from the menacing boulder. The class watched in stunned silence.

Tenya Iida, the class representative, finally broke the silence. "We have to do something! We can't let Kaminari get hurt!"

"Iida's right!" Uraraka chimed in, her hands already glowing with her gravity-defying powers. "Let's help Kaminari!"

With a collective nod, Class 1-A sprang into action. Each student used their unique quirks to try and distract the boulder.

Todoroki created a wall of ice between Kaminari and the boulder, while Bakugou blasted the ground to create a diversion.

However, the boulder simply bulldozed through the ice and continued its pursuit. It was as if it had a single-minded mission to get Kaminari.

"This is getting out of hand!" Midoriya exclaimed, analyzing the situation. Suddenly, an idea flashed in his mind.

"Everyone, stop using your quirks!" He shouted. The class looked at him in confusion, but trusted his judgment and ceased their actions.

"Kaminari, use your quirk!" Midoriya instructed. Kaminari looked terrified, but he trusted his friend and summoned his electricity.

The moment Kaminari's electricity hit the boulder, it stopped. It seemed confused, as if it didn't know what to do.

"Now, Uraraka!" Midoriya called. Uraraka immediately used her quirk, making the boulder float. It was then safely moved away.

The class breathed a sigh of relief. They cheered for Midoriya's quick thinking and Kaminari's bravery in facing the boulder.

"Well done, everyone," Aizawa said, his stern face softening into a slight smile. "That was quick thinking, Midoriya."

"And good job, Kaminari," he added, turning to the blonde who was still panting from the ordeal. "You've faced your fear bravely."

Kaminari scratched the back of his head bashfully, grinning. "Well, I had great support," he said, looking around at his classmates.

"Still," Iida piped up. "We should all be careful. That boulder might still hold some surprises." The class nodded in agreement.

As the day came to an end, Class 1-A left the training field, chattering about their exciting day. Their bond had grown even stronger.

The boulder, now inert, sat quietly in the field, no longer a threat. But its memory would always be a part of Class 1-A's training history.

And as for Kaminari, he had earned a new title among his classmates: "The Electric Boulder." He wore it with pride and a lot of laughter.