Taboo Manual for Raising a Succubus Girlfriend!

..

“Tada—”

The crisp sound of footsteps echoed among the ruins.

Not long after Ye Shi left, she saw more and more corpses of mechanical soldiers. Soon... she found a familiar figure at the location where the most remains were.

"Yuyi, Zero!"

Two succubus girls appeared in front of him, and Ye Shi walked forward quickly to check their situation.

"call..."

The sound of steady breathing.

Fortunately, the two just fainted and were not injured.

but..

Apart from the two of them, the third person among them was not so lucky.

A dark-skinned succubus held Yu Yi and Ling in her arms as if they were her own children. She did not let go even though they were covered in bruises. She had a relieved smile on her face and had stopped breathing.

"Flower clothes..."

Ye Shi said the other person's name.

One of the magical girls in the Old Testament, the phantom magical girl - Hibiki Hana.

Ye Shi is not good at dealing with this magical girl who has the ability to read minds. He always feels that he cannot reach her heart and does not know what she is thinking.

However, she didn't expect that until the end, when facing Huayi's death, she still didn't understand.

"Thank you for protecting them."

The only thing Ye Shi could do now was to express his gratitude.

“Clatter, clatter—”

Petals scatter.

Just as she reached out to take Yui and Ling, Huayi's body turned into a thousand petals and floated in the air.

A piece of white paper fell to the ground along with the falling petals.

"This is..."

Ye Shi picked up the white paper, shook the petals on top, and opened it.

That was a letter.

A letter left for Ye Shi.

"Yoshito-chan, don't be sad about our deaths, because...we are all sinners."

"During the last Human-Demon War, we were blinded by the name of 'justice' and killed many innocent demons, committing an irreparable crime."

"Our death is nothing more than a trivial act of self-salvation."

"I'm sorry for not telling you the truth before."

"It's not that we haven't considered doing so, but... at that time, you were brainwashed by the human town. If we told you, you definitely wouldn't believe it. After all, Sayo doesn't trust us at all."

"Now, the war has finally arrived."

"I'm sorry, there's not much we can do. We can only pave a narrow path for you and those you cherish to escape this hell."

"Let's find a place to live in seclusion, escape the clamor of war, stay with the ones we love, and grow old together."

"Yuyi is a good child. I hope you can give her happiness."

"the same as you...."

"Yoshito-chan, I wish you happiness."

At the end of the paper, several words were blurred by tears.

...

After reading the contents of the envelope, Ye Si felt like he was hit by a heavy punch in the chest and stood there for a long time unable to move.

Originally, she always suspected that these magical girls were secretly planning something behind her back, but she didn't find out until the end...

That was just pure kindness.

why...

Why didn’t I notice this earlier?

A breeze blew, and the delicate petals were gently rolled up and drifted away in the direction of the wind.

"thank you all..."

Ye Shi's voice could no longer reach their ears.

..

..

War is cruel.

The two Old Testament magical girls used their lives to pave a path for Ye Shi and help her find the direction to survive.

This was the final redemption that these two sinners could achieve.

But, what they don't know is...

Ye Shi, like them, has become an unforgivable "sinner".

..

"Yuyi, Zero..."

Ye Shi placed the two demon girls in a safe place, staring at their sleeping faces, a hint of loneliness in his eyes.

Now, she has recalled those memories that were "erased".

She clearly remembered that she had slaughtered countless demon civilians and killed Zero with her own hands, dyeing the demon world red with blood.

Yu Yi, the kind-hearted demon king, risked disappearing and used his own "existence" as a price to reverse time and make up for it all.

"In this world, the person least worthy of living... should be me."

Ye Shi gently held Yu Yi's small hand, recalled everything he had done, and lowered his eyes:

"I'm sorry I didn't stop the war..."

She didn't keep the promise she had made.

The war still happened, and the demons' homes were wantonly trampled. Even though the "Demon King" no longer existed, humans did not stop their slaughter.

The real "devil" is "the human heart".

so...

sorry.

Ye Shi's next choice may go against Qian Du and Hua Yi's wishes, and he will no longer be able to stay with the people he loves.

But, she has to do it.

This matter must be done by her, and only she can do it.

..

..

"When this is over, there will be no more war in this world..."

Ye Shi gently stroked Yu Yi's cheek, his red eyes revealing a reluctant feeling. He bent down and gently kissed her forehead.

"Chiu"

This might be the last time she would touch this lovely lover.

Just as she stood up again and prepared to leave, she felt a slight tug on the hem of her clothes.

"...Don't go."

Yu Yi seemed to have a premonition of something. While falling into a coma, she grabbed the hem of Ye Si's clothes, not wanting to let her leave.

"..."

Looking at the little hand that was unwilling to let go, Ye Si's chest felt as if it was bleeding and he reached out to hold the back of her hand.

She recalled how she had vowed many times not to let go of Yu Yi's hand, but now...

This promise can no longer be fulfilled.

"Live happily in a world without me."

Ye Shi took the initiative to push away Yu Yi's hand, determination in his eyes, and slowly turned around, heading towards his own battlefield alone.

..

perhaps..

This is the fate of the Old Testament magical girls.

Ye Shi stood at the top of the "Falling Iron" and looked out at the burning city. Wherever he looked, there were densely packed mechanical soldiers who were wantonly destroying buildings, enslaving and killing innocent demon civilians.

really...

Humans will not let the demons go.

Even if she could escape successfully with Yu Yi, the city, streets, school, friends, teachers, classmates... everything would no longer exist.

Is this kind of exiled life really "happy" for Yu Yi?

It's impossible.

Ye Shi has made a decision.

She wanted to give Yuyi more.

for example....

A whole world.

...

...

Demon King..

what is it?

Is it the embodiment of darkness and evil? Or something else?

Ye Shi stood at the highest point of the demon world, feeling the bloody wind, and slowly placed his hand on his heart.

Suddenly, she remembered something.

Magical Girl of the Star...Hatsusou once hinted to her that three demon kings would be born in this world.

"The former Demon King", "The present Demon King", "The future Demon King"

The former Demon King was "Yu Yi", who used her existence to make up for the mistakes made by Ye Shi.

The current demon king is "human heart". Human malice is the real enemy. They will devour anything that is beneficial to them.

So...

What about the "future demon king"?

Who is that unborn demon king?

Why, until now, she hasn't appeared?

what...

"Thump, thump."

Ye Shi felt the sound of her own beating heart, and another self appeared before her eyes, the self she regarded as the "Demon King".

"She" smiled lightly in the breeze, took a step forward, and merged into Ye Shi's body.

At this moment, she finally realized...