One day.

Hiiragi's house, a certain room.

"Hiiragi Masa, that hateful woman, is she already proficient in mastering ghosting?"

The young man in a black military uniform had a gloomy and terrifying face.

"Click!"

The glass in his hand let out a wail and shattered to the ground.

"The young master is angry. ”

The blonde girl with a single ponytail said respectfully.

Aoi Sannomiya.

One of the ten branches of the Hiiragi family, the eldest daughter and heir of the Sannomiya family, voluntarily follows Hiiragi as a personal servant.

"Hmph. ”

Hiiragi's face softened slightly when he heard Aoi's voice.

But the anger in his eyes obviously has no intention of stopping there.

"A mere experimental subject, even dare to try to get involved in the position of the head of the family?"

"Hiiragi Masa, for the sake of your usefulness, I'll let you live for a while longer. ”

......

"Then again,"

"Masa, are you really going to continue this experiment?"

Ajuramaru asked.

"Once you've completed the Demon Spell weapon, Hiiragi Twilight, or the other heirs, your situation will definitely become even more dangerous. ”

The birds are all gone, and the good bow is hidden.

A large part of the Hiiragi family's attention to Hiiragi Masahiro lies in the fact that this woman has the opportunity to break through the difficult problem of demon spell weapon research.

After the utilization is completed, who knows what the people above will think.

There is no big man behind the real day, and he doesn't have the power of the Hiiragi family.

Compared with the ganged Hiiragi twilight people, he is completely alone.

"Strength, after this experiment,"

"I'll get more power. ”

True Day replied lightly.

As long as she has enough strength, she can protect her sister and also take revenge on the guys she hates.

She doesn't care about who she pleases.

The head of the Hiiragi family?

It's really not in her eyes.

If she had to choose, she would be more than happy to ruin the place.

"For the sake of power,"

"So working with the Hundred Nights Sect?"

Looking at the book of the Hyakya Sect in the girl's hand, Ajuramaru had an inexplicable smile on her face.

Integrating the spells of the Hundred Nights Sect and the current experimental results of the Hiiragi family, the ghost spell weapon that lodges the ghost is finally about to be released.

"I'd love to. ”

The girl replied without raising her head.

Devoted to the study of the "Ghost Curse" in his hand, time passed unconsciously.

Two weeks later.

Laboratory.

"Congratulations, Miss, the experiment has been successful. ”

The staff jumped in excitement and almost hit the ceiling.

Looking at the test bench operated by Hiiragi Masa, a black long sword burning with flames lay quietly.

This is a historic moment.

The weaponry that represents humanity to deal with vampires has entered a higher level.

From now on, humanity will enter a whole new realm against vampires.

"Can I trouble you to go out for a while?"

"I want to see my work for myself, and of course, you can take the results of the experiment first. ”

The girl said lightly, her face a little tired.

A stack of paper recording the experiment was handed over in his hand, and the staff respectfully accepted it as if they had received a treasure.

"Yes, Miss Masa. ”

As the only guy watching the show left, the lab fell silent.

"Ajuro Maru. ”

Looking at the phantom figure around him, True Day called softly.

"What's wrong?"

"Lovely little girl. ”

The young man in white slowly opened his eyes and replied lazily.

looked at the black long sword, and there were not many unexpected fluctuations in his eyes.

"I want you to blend into this weapon. ”

The girl said seriously.

He pointed to the flaming sword in his hand and said seriously.

"Huh?"

"Did I hear me right?"

Ajuramaru had a skeptical look on his face.

"Stay in your body well, why do you want to be a weapon if you have nothing to do?"

"I don't do such stupid things. ”

Hearing this, Hiiragi was stunned.

"However, after incorporating the demon curse weapon, the power of the demon will be developed to the greatest extent......

The girl murmured, as if it were an endorsement.

This is the knowledge of the textbook, and of course, the conclusion of her own experiments.

"Who said that?"

"Stupid to read?"

"I'm not an ordinary vampire, I'm not like those glamorous sluts out there,"

"Don't worry, little girl,"

"With me to protect you, don't say one Hiiragi, even if it's a hundred, I'll keep you safe and sound. ”

Ajuramaru had a wicked smile on his face.

For some reason, some warmth suddenly rose in Mahiro's heart.

This guy turns out to be quite useful sometimes.

"Huh?"

"Autumn Dermatella!"

"Girl, don't hurt yourself!"

It didn't take long for Ajuramaru's face to be happy, and suddenly it changed suddenly.

Hiiragi Zhenday, he actually cut his wrists and bled out, and the blood was poured on the black giant sword.

The sword was stained with blood, and the flames on the sword burned even brighter.

"Don't worry, you can't die. ”

For about five seconds, the girl calmly took care of the wound.

His face was as pale as paper, but his black eyes were full of excitement and excitement.

"Scared the hell out of me, I thought you were going to sacrifice yourself. ”

Ajuramaru helped his forehead.

Almost, just a little, he couldn't help but stop the girl's self-harm.

"My blood, with a part of your power,"

"Now, this weapon is sure to become incredibly powerful. ”

The girl said excitedly.

Looking at the long sword on the test bench, a sickly smile appeared on his face.

"With my protection, you are already strong. ”

"Who wants you to protect it?"

"Maiden, I curse your boobs to stop growing. ”

“？”

......

At night.

"Welcome home!"

As soon as the door was opened, the little girl had already pounced happily.

"Well, Aya's so cute. ”

Masahiro touched her sister's hair with a gentle expression.

"My sister's face is very bad, is she sick?"

Xiao Yuya noticed the bandage on her sister's arm and asked with some concern.

Unlike the peerless genius True Day, her grades in school are only good, and she doesn't know how far away from True Day.

Of course, this is also deliberately done by the real day.

From the very beginning, she had no intention of letting her sister go her own way and get caught up in the whirlpool of power struggles.

"Don't worry, my sister is just doing an experiment,"

"I'll be back soon. ”

True Day said with a smile.

The two sisters returned home and sat together on the couch.

"Sister?"

Juya snuggled up to Mayu and called.

"How?"

True Day said gently.

"When I grow up, can I have the same body as my sister?"

"Speaking of which, the legend of the goddess of the real day has been circulating in the school to this day. ”

Yu Ya said enviously.

rubbed his sister's soft breasts, making a certain creature also cast a curious look.

It's a pity that he doesn't have a substance, otherwise he would have pounced a long time ago.

"Yuya,"

"Don't be bad kids. ”

Mahiro knocked on his sister's forehead and said seriously.

"People are just kidding. ”

"I'll forgive you this time, and I won't take it as an example. ”