I'm the terminally ill novel's extra.

"The Secret Diary of Charlotte Valois"

"Ugh-Where am I?"

Wang Mingya blinked and found herself in an unfamiliar room.

Mingya looked around the room, taking in her new surroundings. The room was spacious, with high ceilings and large windows that let in a soft, filtered light. The walls were painted a pale pink color, and there were delicate floral patterns on the curtains and bedspread.

"Wow..."

The bed was a four-poster, with a canopy of sheer fabric draped over the top. Mingya could see that the bedding was made of soft, high-quality fabrics, and she couldn't help but feel a pang of envy. She had never slept on such a comfortable-looking bed before.

She got up from the bed and looked around to find anything that might indicate where she was.

Mingya's eyes fell upon a large mirror in the corner of the room. She slowly approached it and stared at her reflection, expecting to see her own face staring back at her.

But what she saw instead was the face of a young girl in her early 20s, with long brown hair and bright blue eyes - the girl whose body she now inhabited.

"GASP!-"

Mingya let out a gasp of shock, feeling a mixture of disbelief and wonder. She tentatively touched her face, running her fingers over her current body's smooth skin and delicate features.

"D-did I transmigrate?"

It was all so surreal, but the evidence was right in front of her.

She noticed a bookshelf filled with various titles, including a thick history book with a familiar cover. She picked it up and began to flip through the pages, her eyes widening as she recognized the names of the cities and landmarks mentioned.

"This can't be a coincidence," she murmured to herself, finally realizing that she had indeed transmigrated into the world of the novel she had last read.

"I must be in the world of [Counterattack of the Villainess],"

A chill ran down her spine as she thought about the possibility of being trapped in a world that wasn't her own. She couldn't shake the feeling of being lost and alone.

"But if that's true," she continued, her voice trembling, "then why don't I remember anything about the body I'm currently in?"

As she continued to explore the room, her eyes fell upon a diary on the table. Mingya hesitated for a moment, feeling a twinge of guilt at the thought of invading this young girl's privacy. But then she remembered she was now in possession of her body.

"I-It's not wrong. A-after all, I am just reading my own diary. Hmmm, that's right!"

She convinced herself and picked up the diary, flipping through its pages.

Through the words on the pages, she learned that the young girl's name was Charlotte Valois. She soon came across an entry that seemed to be about Charlotte's brother.

She was surprised to find out that Charlotte was William Valois's younger sister.

William Valois was the infamous side male lead from the novel [Counterattack of the Villainess].

That's right - he was 'infamous'; he was the typical Yandere male lead who would do anything to obtain the female lead, Isadora.

As she read through the words, she couldn't help but feel Charlotte's bitterness about her life.

According to the diary, Charlotte's brother was the center of attention in their family. He was handsome, strong, and talented in many areas, especially in swordsmanship. He was the captain of the Silver Knights, a prestigious group of soldiers tasked with protecting the kingdom from monsters and criminals.

Charlotte described her brother as the epitome of perfection, and it was clear from her writing that she felt overshadowed by him. She wrote about how her father praised him constantly and gave him all the attention, while she was left feeling neglected and ignored.

Charlotte was a meek and obedient girl who had always lived in the shadow of her older brother. Mingya felt a surge of frustration as she realized how limited Charlotte's life was.

"Damnit, what the hell is this? Why didn't the novel mention anything about Charlotte?!"

Wang Mingya muttered with frustration as she realized she had no idea how this character was involved in the plot of the novel.

According to Charlotte's diary, the year was 676 AC (After Creation) and the month was Aurius, which was equivalent to January in her world.

There were still only three more months before the plot of [Counterattack of the Villainess] would start.