Itachi Uchiha, Luna Lovegood's husband, had been absent from Hogwarts for a week. The girls, who had grown fond of the mysterious man, eagerly awaited his return. Little did they know, a surprise was in store.

As dinner started in the grand hall, the doors swung open revealing Itachi. He was clad in a red and black patchwork hoodie, black skinny jeans, and converse shoes.

Itachi's comfortable and unique outfit contrasted with his usual cloak. Luna and the other girls were left speechless, while others gasped at his unexpected yet striking fashion choice.

As he entered, his eyes met Dumbledore's. "I'm back. Told Nagato that Voldemort's gone and he's just waiting for the money," he spoke, capturing everyone's attention.

Dumbledore, not surprised by Itachi's attire, nodded. "Thank you, Itachi. The funds will be sent tomorrow," he replied warmly, causing murmurs among the students.

Lavender Brown, a known admirer of Itachi, couldn’t contain herself. “Oh my god, he was already hot, but those clothes!” she gushed, much to the amusement of her friends.

Ginny Weasley, another Itachi fan, was equally excited. "Itachi, what kind of jeans are those?" she asked, her curiosity piqued by his casual clothing.

"Oh, these? They're skinny jeans," Itachi replied nonchalantly, his cool demeanor adding to the charm of his new appearance.

His casual comment left Ginny and the others giggling. Fleur Delacour, a known beauty, then complemented Itachi, "You look very dashing."

"Thank you," Itachi simply replied, his calm demeanor only adding to the aura of mystery and attraction he projected.

Hermione Granger, always the curious one, jumped in. "Is that what you usually wear?" she inquired, intrigued by the dashing but unusual clothing.

"Yes, during my outings," Itachi responded simply. His unexpected openness led to many surprised stares and whispers among the students of Hogwarts.

Gabrielle Delacour, Fleur's younger sister who also admired Itachi, chimed in. Blushing, she said, "You look very handsome." Itachi thanked her, causing Gabrielle to blush further.

It was clear that Hogwarts was swept off its feet by the mysterious Itachi's unique style. Even Luna found herself admiring her husband's new look.

Luna Lovegood, quietly observing, said, "Itachi, you seem different. More at ease. It suits you." Itachi smiled at Luna, his wife's words touching him deeply.

As dinner ended, and the students dispersed, whispers and murmurs about Itachi's strikingly casual attire continued to echo through the halls of Hogwarts.

Even as the excitement died down, the impact of Itachi’s fashion debut remained. The students couldn't help but wait in eager anticipation for his next surprise.

That day, Luna found Itachi more approachable than ever, highlighting the bond they shared. Their love story was as unique as Itachi himself, captivating the hearts of many at Hogwarts.

The next day, Itachi was the center of attention. His unique sense of style had made a statement, influencing the fashion trends within the school.

His fashion choices created a newfound interest among the students. It wasn't just his clothes, but his demeanor, courage, and individuality that made him a role model.

Hermione, Ginny, Fleur, and many others even found themselves incorporating pieces of Itachi's style into their everyday outfits, hoping to convey the same confidence and individuality.

While Itachi's style became a talking point, Luna proudly watched as her husband unknowingly impacted the fashion culture of Hogwarts, making it a more vibrant place.

In the following weeks, Hogwarts saw a noticeable shift in students' attire. Casual wear started becoming more popular, a trend that Dumbledore amusingly noted.

Though Itachi remained his calm, nonchalant self, he was touched to see his influence on the students. He never aimed to be a trendsetter, yet he had become one.

In the end, Luna was pleased that her husband’s individuality was celebrated. She was proud to see Itachi fitting into the magical world, bringing a touch of his own charm.

The excitement over Itachi's style became a memorable chapter in Hogwarts' history, marking the time when the resident heartthrob influenced Hogwarts' fashion culture.

Whether in his cloak or casual attire, Itachi Uchiha, the heartthrob of Hogwarts, was more than a trendsetter. He was an inspiration, a symbol of individuality and confidence.

Itachi's style and unique charm continued to captivate Hogwarts. As for Luna, she was simply content to watch her husband bring a unique flair to their magical world.

Weeks turned into months, and Itachi's influence remained. His unique style had not just transformed Hogwarts' fashion but also left an enduring impact on the school's spirit.

And so, Itachi Uchiha, the shinobi turned wizard, continued to weave his magic in Hogwarts. His style, charisma and individuality amplified not just the school's fashion culture but also its ethos.

As time passed, his tale became an integral part of Hogwarts' folklore. A tale of charm and individuality, a tale titled - "Itachi's Style".