Help! I changed the gender of the male protagonist in the yandere game

The name Tsukigara Yomei.

This plain-looking girl, no,柊昼子 (Hiiragi Hiruko), whose true identity is the Great Shrine Maiden of the Tenshinzakura Main Shrine, had heard of her name.

Tenshinzakura Mahoraga also mentioned in the "Oracle"—it sensed that more than a decade ago, in the land of Mutsu in the East, an infant with the "Star of Shattering Myriad Phenomena" was born.

"That person possesses an extremely powerful destiny. Judging from their natal star, they can strongly interfere with this world…"

Mahoraga told her.

"If that child named Yomei comes to Kasumi Castle, try inviting them to the Tenshinzakura Main Shrine… Perhaps, this person may have a way to lift the curse on you, to eradicate the True Ancestor Vampire, Akaten'i, who came with Xu Junfang's eastward voyage, and the disaster it brought to this land."

—Xu Fu, courtesy name Junfang.

He was an ancient Taoist recorded in historical books who served the First Emperor. He, along with Han Zhong, Hou Sheng, Lu Sheng, and others, were members of the group of Taoists loyal to the First Emperor, researching elixirs for immortality for that emperor.

For reasons unknown, the First Emperor transformed into a Progenitor Vampire, and Xu Fu also led his followers eastward before the Qin Empire fell, arriving in the island country during the reign of Emperor Kōrei.

According to Mahoraga, Xu Fu's motive for going east was suspicious. He was a powerful mage and had a deep understanding of the art of eternal youth… He himself may already possess some degree of immortality.

Xu Fu hid his name but assumed many identities, playing the role of a behind-the-scenes manipulator on the stage of history. He was "Ōnamuchi," who established the Tokoyo God faith, and also "Fujiwara no Chikata," who opposed the court in the Heian era…

Whenever this person appeared, he would bring various disturbances to the world. Later, Xu Fu secretly formed an organization called "Hachi Fukukai," absorbing eight outer gods who called themselves "Seven Lucky Gods," and was revered as the Eighth Lucky God, "Zero Fortune."

Of course, that's beside the point. Although Mahoraga was wary of this mysterious leader of the Hachi Fukukai, she also knew that this "Zero Fortune" was in deep slumber and had no chance of making a comeback in the short term.

However, when Xu Fu went east, the True Ancestor-level vampire under the First Emperor, "Akaten'i," also traveled to the island country.

Initially, this monster was not powerful. After lying dormant for many years, it began to wreak havoc in the land of Ushu. Later, it was sealed beneath Tenshinzakura in the ruins of the Land of Roots, a nest of defiled spirits, from which even powerful vampires could not escape.

However, Akaten'i also left some kind of curse when it was sealed, which prevented Tenshinzakura Mahoraga from growing, and its defiled blood remained within the tree, affecting the successive Great Shrine Maidens.

"Tsukigara Yomei is the one who possesses the power to break the curse?"

Hiiragi Hiruko showed a surprised expression, but she suppressed it with her heart.

"Wh-what's going on here?"

Just then, the owner of the rental bookstore who had gone out, and the clerk who was watching the store, rushed over. They were shocked by the chaotic scene.

"Customer… wh-what have you done?"

…

"No, it was an accident…"

Yomei wanted to cry but had no tears, wanting to defend herself.

However, she had no idea how to explain it.

Okay, let's review what happened. Yomei and her stepsister Ayaka used invisibility to hide their presence and secretly followed to the outside of the bookstore. The former was still muttering things like "shameless."

Ayaka rolled her eyes and sighed, "What are we going to do next?"

"Of course, we'll keep following them."

Yomei gritted her teeth.

"We can't just give up halfway, can we?!"

"It's just stalking; do we have to go this far?"

Ayaka couldn't help but retort.

Of course, Yomei completely ignored her.

"Then go in yourself…"

Ayaka shook her head.

"It will attract attention if two people go in together. Be careful not to get caught while stalking."

"Don't worry."

Yomei clenched her fist to cheer herself up, cast an invisibility spell on herself, and walked into the bookstore.

"There are so many books."

The economy of Tsukigara's territory is not prosperous, and the scale of the settlement town is much smaller.

The rental book merchants Yomei knew were traveling merchants who traded on foot, and they didn't need a store at all.

"…It's so big."

The Tsukigara family also has a family library, but it's not very large.

"It seems like they have all kinds of strange books."

She looked around and was quickly shocked by the neatly arranged bookshelves and the messy piles of books, standing there blankly.

Fortunately, at this time, she heard the voices of Hyakusuke and Yae chatting nearby.

Only then did Yomei become alert. She hid behind a bookshelf, held her breath, and tensed her whole body.

The two passed by her without noticing her.

"Th-that's right… I used invisibility, so I shouldn't be seen through so easily!"

Her invisibility skill is pretty good. Although it's hard to say if she faces a truly powerful mage, it's easy to fool ordinary people.

Hyakusuke's spiritual power is much weaker than hers, and he can't see through her magic with his own ability.

Yomei's mood also relaxed. She peeked at Hyakusuke, who had separated from Yae, from the bookshelf, and unconsciously glanced at the books on the shelf.

"What are these strange titles, 'The Widow Yuki-Onna and the Cursed Ring,' 'The Life-Draining Demon Cave,' 'Escape from Kirisame Island,' 'The Worm Festival and the Exorcist Shrine Maiden'—"

The girl whispered the titles of the books.

These themes and works are somewhat outrageous, basically containing excessive content.

At this time, she had not yet realized that she had strayed into the area of erotic novels.

"What is this one… 'The Rebellion of the Evil King?'"

Yomei showed a puzzled expression, but her eyes seemed dazed. She couldn't know what these books were about by reading the titles.

In fact, these themes and works are somewhat too "futuristic," but considering those time travelers whom Yuki Onna-hime called "bugs," it's not surprising that things that clearly don't fit the characteristics of the era appear now.

Admittedly, although the Tsukigara clan's education doesn't completely avoid explaining matters between men and women, it's more traditional and conservative.

From childhood to adulthood, Yomei had never even been exposed to things like shunga paintings. Her father, Washizu, liked to joke, but he was very devoted at heart and had no intention of remarrying after his wife left.

Her stepbrother, Kukutsu Ikki, was silent and寡言, seemingly completely immune to female charms. Yomei was also shocked when the news of his marriage came.

Moreover, she had a stepsister, Ayaka, who "strived" to educate her brother into a stalwart man, so there was no chance to come into contact with secret paintings, shunga paintings, or erotic books.

"…What strange titles, what kind of books are these?"

Yomei randomly pulled out a book from the shelf, opened it, and read it casually—because the invisibility spell mainly distorts people's perception, it won't cause the weird situation of the book floating in mid-air.

"Is it a romance novel?"

After reading the first few paragraphs, it seemed to describe a love story between a samurai boy and a princess in the castle he protected.

The boy and the princess were childhood sweethearts and seemed to be lovers in the future. However, the princess was targeted by the evil lord of the enemy country and almost had her life taken away.

The enemy lord sent out a large army to hunt down the two who had escaped from the castle. In the end, the samurai boy chose to sacrifice himself to protect the princess and was captured by the lord.

'Hehe, I didn't expect you to foolishly abandon yourself for a woman. How pathetic~~'

The young, handsome, and gloomy lord sneered.

'I originally wanted to capture that woman and make her my wife, but since she ran away, you can replace her.'

'Wh-what nonsense are you talking about?'

As soon as the boy finished speaking, he was forcibly given a secret medicine.

'This is a secret medicine that will turn even a man into a woman~~ Kukuku, you can enjoy it thoroughly?'

When she read this part, she swallowed her saliva subconsciously, attracted by the plot, and the story began to change.

The samurai boy, under the influence of the secret medicine, turned into a female body, and the S-attribute lord performed various abuses on "him" every day—um~ "abuses" in various senses.

"Uh-huh~… That's a lie, isn't it? It's impossible for even this kind of thing to happen…"

Yomei's entire face turned red, and the hand holding the book began to tremble, the scenes in the book becoming more and more excessive.

"Th-this is such a shameless thing… Both the front and the back are used? A-are you beasts?"

She complained incessantly, but her eyes were still staring at the words on the book.

'Stop… spare me? Please don't do this anymore~~'

The feminized samurai boy cried out in agony.

'Lord, I beg you~~ Please have mercy?'

'Stop, why should I stop?'

The lord smiled coldly.

'Did you really think I did all this for that woman—'

'Wrong, it's all to get you.'

Seeing this, Yomei's pupils shook violently, and she was so shocked that she was like a piece of wood, standing there in a daze.

She had never been exposed to this kind of story before. The excessive plot brought a huge shock, filling her mind with chaotic thoughts.

Then, somehow, she began to imagine the characters in the plot, the lord and the samurai boy, except that the other party became herself, and the corresponding lord became—

'N-no, that's not true… I don't have such thoughts~~ H-Hyakusuke-kakka is just my friend, we can't be that kind of relationship… No, stop the unnecessary imagination, aaaaaah…'

"Brother… what are you doing here?"

Suddenly, a cold voice was conveyed to her ears. It was her stepsister Ayaka, who had also cast an invisibility spell.

She must have been curious and came in to see what was going on.

"Aaaaaaaaaaaaaaaaaa!"

At that moment, scared half to death by her stepsister Ayaka's voice, Yomei's scream sounded like a shriek falling into hell.

While screaming, she also jumped up and pushed the bookshelf in front of her with force, which caused a chain reaction. One bookshelf hit the front, and the knocked-down bookshelf hit another bookshelf, just like dominoes.

"Wh-what?"

Ayaka was also completely frightened and took a step back.

As a result, she accidentally bumped into the bookshelf, and the leaning bookshelf fell down, burying her and Yomei together. The two were simultaneously buried under the collapsed mountain of books.