Torture the hero, why has the Demon King's castle collapsed again?

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"Don't worry, the products of alchemy are far more stable than you think," Swell said, having already checked several times to ensure nothing was amiss.

"I placed the gunpowder in a storage room in the Demon King's castle and placed it under a barrier and a sensory restriction."

"No one can bypass my senses and tamper with those things..."

……

The pale moonlight filtered through the clouds spilled onto the window sill of the prison cell, bringing a chill to the night.

Mino was also awake.

"I haven't been sleeping well these past few days. Is it because I'm missing a certain soft plush pillow...?"

Mino stretched in bed and muttered to herself that even though the bed was soft enough, she still couldn't fall asleep and kept tossing and turning.

In the past, he could fall asleep quickly, even in the grass or on rough sandstone, while holding the holy sword and using his armor as a pillow. Now, however, he is a demon who wouldn't even glance at rye bread.

Mino gazed out the window, lost in thought.

"If this continues, even if I manage to escape the Demon King's castle one day, will I still be able to take care of myself normally? Hiss... As expected of the evil demon race, they've corrupted me to this extent with ease!"

Clenching his fist, Mino decided to return to his original intention and go to Fim's room to have a heart-to-heart talk with the zombie maid.

"It's you I've chosen! Ta-da!"

The next moment, a starlight-like brilliance condensed in his hand, and a key appeared in Mino's hand.

[Demon King's Castle Prison Key: Can open the Demon King's Castle prison]

Although retrieving the key was just a matter of a moment's thought, Mino still liked to make a big show of it, as if his small step out of the cell was a giant leap for humanity. He opened the cell door with practiced ease and walked out.

“Fim’s room, I remember it was in…”

As Mino walked towards the stairwell on the uneven, gray-black floor tiles, she suddenly stopped, hearing hurried, pattering footsteps.

Around the corner, half of a small, wobbly white head peeked out, like a pure white dandelion carefully hiding.

"Oh, it's Mia!"

Mino shouted happily, and the large dandelion in the corner immediately shook.

"Can't you sleep either? No, you should have had enough sleep by now..."

Mino reached the stairs, about to force a warm smile, when a small white head rapidly loomed large in front of her.

"Aww——!!!"

The soft, cuddly little girl crashed into him like a white dump truck!

"puff!"

Mia's little head was firmly embedded in her belly. Her white hair was not very powerful, but the deadly thing was the hard demon horns on both sides of her head.

Mino was immediately forced back a few steps by the injury, rubbing her stomach and wincing in pain.

"Hey, that's really ruthless! You almost knocked over my milk tea that I was drinking tonight, you know that?"

"Hmph!" The tiny Mia on the ground turned her head. Her smooth white hair was a little messy because she had just woken up, making her look like a cat with its fur standing on end, and she looked very angry.

"Are you still angry? Aren't babies supposed to not hold grudges?" Mino rubbed her head, feeling a headache coming on.

Ever since she made Mia cry that time, the other party ignored her for quite a long time. She neither asked her to make milk nor allowed herself to be rubbed hard. Even the pillow sleeping service was suspended.

"Bang bang!"

Looking down, Mia's tender little face was stiff as she stared straight at herself and called out.

Mino immediately turned her head away, ignoring the little tiger's fierce eyes, and looked around curiously:

"Huh? Where's the 'Baba'? I don't see it."

"Bang! Oh no!"

Mia's little face instantly turned angry. She raised her head and skipped over to Mino, calling out in a clear voice as if she wouldn't give up until Mino responded:

"Bang bang!"

"Bang!!"

“Bang Bang!!!”

Mino fell silent, crossing his arms. He also felt that what Klettina said that day made sense: if this little guy really got into the habit of calling everyone he met "Dad," he would be so unsuspecting that he would be captured by the traffickers sooner or later. Besides, if Mia wasn't taught properly at this age, what if she misunderstood when she grew up and became more sensible?

But Mia couldn't understand any of that. Seeing that Mino was ignoring her, the little bean was about to burst into tears. She raised her little arms behind her, stuck her bottom out high, and suddenly launched a high-pitched sonic attack:

"Ugh (voice cracks) ————————————!!!!"

The sharp sound of a knife scraping across glass was like a knife ploughing deep into the glass, violently stimulating the eardrums.

It has been proven that the high-decibel cries of both demon and human infants are a serious torment to the ears.

"Stop, stop, stop!"

Mino felt a chill run down her spine and quickly went to Mia's side, pulling her into a hug and trying to pinch her chubby little mouth.

The child struggled violently with its tender hands and feet, and its soft fists, the size of a small steamed bun, immediately began to pounce on its own body.

"Ouch, ouch, it hurts, it hurts, I'm scared of you."

Mino tried to distract the little guy, saying, "How about this, I'll play with you, okay?"

The little fist that had been raised high finally stopped, and a glimmer of light appeared in Mia's big eyes:

"Play?"

"Yes, I'll take you on an adventure, are you interested? We'll definitely find incredible treasure!!!" Seeing that it was effective, Mino pressed his advantage and opened his palm.

A dazzling light shone, and something appeared in my hand—

Chapter 326 (Seeking monthly votes~) How could the little white-haired devil have caused such a huge disaster?

[Item: Key to the Demon King's Castle Gate]

[Effect: When carried, it can be opened directly upon finding the gate to the Demon King's castle, granting access to any part of the demon territory. For non-demon users, it depends on luck.]

[Negative effect (affects creatures other than demons): When equipped, each time you open the door and enter a space, it will become a random room within the Demon King's castle.]

“Wooah~~~!”

Seeing Mino magically produce the key, Mia's eyes lit up and she clapped excitedly.

"Let's go open some blind boxes!"

Mino, familiar with the place, led Mia to the door of a room and produced the key that was extremely frustrating for him.

To be honest, during the months he was tied up in the Demon King's castle, he had secretly tried to search for him many times when the demons couldn't see him.

But no matter what, they couldn't find the so-called Demon King's Castle gate.

Most of the rooms entered through negative effects are just ordinary storage rooms or the dwellings of female demons.

As a result, he had to bear the humiliating title of "panty thief".

As a former pillar of the human kingdom and a hero of light with equally broad knowledge and combat prowess, Mino basically deduced that the gate to the Demon King's castle was not fixed in one place, but needed to be summoned by contract magic... In that case, there was absolutely no way to escape the Demon King's castle by luck alone, so Mino had not used this key for a long time.

Where will it lead this time?

After putting Mia back on the ground, Mino gently pushed open the door, and a pungent smell immediately hit her.

"Cough, cough, what is this? It tastes like rotten eggs!!"

Inside the sealed, dry space, an open wooden box was filled to the brim with black powder. A strong odor emanated from it even before one approached. Mino stared at the single box of powder placed in the very center of the large room, a look of suspicion on her face.

"It feels a bit like gunpowder... But, no way, haha, this is another world, alchemy hasn't reached that level yet."

Mino sniffed the air, quickly losing interest. It wasn't food; since it was being placed here so casually, it probably wasn't anything important. He turned back, intending to call Mia back.

"Let's go, Mia, there doesn't seem to be anything fun here... Mia?"

A pattering sound came from inside the room.

Mino turned around and suddenly froze: "Hey, this isn't cat litter!"

Before I knew it, the white-haired little girl had run to the box, rolled up her silk lantern pants, and naturally started to relieve herself. After she finished, she ran back to me with a smug look on her face, hands on her hips, as if she thought that being able to go to the toilet by herself deserved a big compliment.

"You, you... never mind, just stop grabbing my trouser leg."

Mino sighed helplessly, rubbed her little head, and closed the door again.

When the door was opened again, the scene inside the room had changed once more—

……

"Besides gunpowder, I presume you have other methods prepared, Swell?"

On the top floor, Apophis and Swell, the two great strategists, were still discussing: "Given your personality, you can't possibly place all your hopes on just one trap."

"That's natural, Apophis. Don't underestimate my nearly thousand years of research."

Swell spoke with a jubilant tone, seemingly genuinely pleased that his hidden weapons were about to see the light of day again—

"There are spotlights that can focus the light at the exit, making it so bright that people can't see the road at all!"

Every inch of the focusing lens's curvature has been meticulously calculated and polished by me; even the slightest scratch would prevent achieving such a perfect effect!

"Hey! Mia, stop scratching that weird mirror with your fingernails, it sounds awful!!!"

“I have transplanted and grafted berries that contain deadly toxins to humans. I mix those poisonous berries with ordinary berries, so that even with the power of perception, they cannot be distinguished.”

"Hey! Mia, these berries look like they've been sitting here for ages, why are you still picking and choosing what to eat?!"

"There is also a synthetic beast that can survive in an environment without magic or holy power. After my training, it will only show strong aggression towards humans, but conversely, its body is extremely fragile. Even an infant can harm it."

"Hey! Mia! Let go of that stray dog, it looks a bit like it!!!"

"Finally, and most costly, but also our trump card..."

On the top floor of the Demon King's castle, Swell's tone suddenly became somewhat heavy: "That was something that the Book Demon Clan developed one after another to prevent the tragedy of a thousand years ago from happening again."

"Oh? What is that, Swirl?" Apophis asked curiously.

“That is… my great-grandfather’s ‘book ashes’.”

"Book dust?"

“Yes.” Swirl’s book pages fluttered gently as he said with a touch of nostalgia, “After the Book Demon died, it cremated the books that were its corpses. The powder left behind condensed the knowledge in its mind and transformed it into extremely powerful physical force.”