The fierce hound of Kulan, the sharp-witted detective!

Two Days Ago.

In Dongmu City, the hot tourist spot of Iwai Beach.

The place was bustling with life, filled with bikini-clad women flaunting their curves, exuding a sense of allure.

On the shore, a man in a tight blue outfit leaned on his fishing rod, grumbling, "Hey, Master, look over there—so many beautiful women! Isn't it ridiculous for us to hide here fishing? Which beach has fish anyway?"

"Isn't it your fault for chasing all the women away? I can't even get a sip of soup!"

Not far off, a middle-aged detective with a thin mustache vented his frustration. "Ever since I summoned you, my luck's gone downhill. No women, no fish… nothing!"

"Huh? How is that my fault? What woman would like a greasy old man like you?"

The servant, a Lancer class heroic spirit, was taken aback. He had lived for quite some time but had never encountered someone so shameless.

"If it weren't for you being such an eyesore in front of my good friend Kogoro Mori, all those beauties would definitely line up for a photo with me!"

Despite the scornful glances, the man with the bushy mustache retorted confidently.

It was clear these two were a pair of unfortunate partners.

At that moment, as scenes unfolded, people around the world were laughing uncontrollably.

"It's outrageous! A valiant hero paired with a narcissistic old man—what a sight to behold!"

"Too perfect! They're even more 'in sync' than the Archer duo!"

"The Holy Grail War? More like the War of Suckers!"

"Who would've thought a noble knight would end up in such a predicament!"

"That detective looks familiar; I think I've seen him in Miflower Town!"

"I've seen him too! I think his name is Kogoro Mori—he always seems so carefree."

"The Lancer really is handsome; with those looks, he'd be a national heartthrob even today."

"My opinion? Not as good as Lancer."

"Each has their charm, but compared to Lancer's composed demeanor, as if he has everything under control, I prefer this wild and heroic figure."

"Who hasn't seen Observer Network? Can someone introduce this servant?"

"His name is Cú Chulainn, the 'Son of Light' from Irish legend, one of the fiercest heroes in Celtic mythology."

"In Irish, Cú Chulainn means 'Hound of Ulster'."

"His father is a sun god, and his mother is human, so he's half-divine, half-human."

"No way! He's that impressive?"

"Not only that! In the epic 'Táin Bó Cúailnge,' Cú Chulainn is unstoppable in battle. Once he starts fighting, he transforms into a monstrous figure with a gaping maw, terrifying anyone who sees him…"

"Wow, he's basically the ultimate tough guy!"

"His rational form is a handsome man, but his berserk form is a savage hound—I love it!"

"No, the servant is merely a shadow of the heroic spirit. The monstrous Cú Chulainn only appears when summoned as a Berserker; as a Lancer, he remains rational."

"Isn't that even better?"

…

"Honestly, how did you manage to summon me…?"

Cú Chulainn scoffed, unable to hold back his complaints. "You see a woman and your tongue practically hangs out. How can such a useless man like you be my master?"

"How was I supposed to know this ridiculous Holy Grail War was actually real?!"

Kogoro Mori was getting agitated, flinging his fishing rod aside.

He hadn't shown such anger even during a crisis.

This famed detective grumbled, "I was just enjoying my life, smoking and sipping some drinks at the office."

"Then out of the blue, I get a letter from ten years ago, asking me to protect some girl in the Holy Grail War."

"The requester is dead, but I felt sorry and took it."

"I thought it was just an ordinary task. These rural magicians are always coming up with half-baked rituals—I've seen plenty… who knew this so-called Holy Grail was real!"

"The victor can wish for anything and reach the Root!"

"This is basically the ultimate goal for all magicians!"

"To achieve this leap, every magician is going mad researching magic. If someone leaked the news about the Holy Grail, it wouldn't be surprising if the whole city was wiped out the next day!"

"This place is a swamp. Just as I was thinking of getting out, the command spell inexplicably appeared…"

"I can't even leave!"

Kogoro Mori continued his tirade with sharp words.

Cú Chulainn's playful demeanor faded, and he grew serious. "Alright, I'll make sure you survive… I am the Hound of Culann!"

"Whatever. I'll find my own way," Mori waved dismissively, lighting a cigarette and letting out a long sigh.

Suddenly, a commotion erupted on the distant beach!

"—Ahhhhhh!!"

A piercing female scream instantly captured everyone's attention.

Cú Chulainn instinctively raised his spear, standing protectively in front of his master. "Master, be careful!"

"Don't run off. If anything happens to you, all the things I just said will turn into a joke."

"There's a smell of blood…"

"Lancer, let's go. We have a case to solve."

Kogoro Mori furrowed his brow, suddenly turning back with a serious look that was a stark contrast to his usual nonchalance.

People all over the world: "?"

Watching the little-mustached detective's unexpected shift in demeanor, everyone felt a moment of confusion.

What just happened? That serious look was surprisingly attractive.

…

"Looks like my buddy Mori is finally taking things seriously…"

In the real world, Officer Megure hesitated, his expression gradually turning serious. He couldn't stand to see others looking down on or belittling his friend Mori.

With a flurry of keystrokes, he typed out a headline for the police department's publication.

"At our precinct, there once was a genius who scored full marks on his first shooting test."

"Every time he responded to a call, he made the best decisions and saved countless lives."

"Although afraid of heights, he would scale four stories barehanded to save someone."

"To this day, he ranks first in the police academy, unmatched by anyone, including Zero."

"He's no longer with the precinct and has opened a detective agency in Miflower Town."

[Accompanying image (Kogoro Mori. Intense gaze edition).]

This announcement quickly caused a sensation.

Countless people marveled and praised it, sharing it wildly!

…

In Miflower Town, at the Mori Detective Agency.

Inside, a girl with a graceful demeanor stared at the news, her mouth covered in disbelief.

Tears welled in her eyes as she looked at the inebriated man, thinking of her once-vibrant father. She trembled, her voice breaking as she murmured, "Dad…"

"Huh? What is it, Ran…?"

The drunken man replied groggily, but upon hearing his daughter's choked voice, he immediately flew into a rage. "Which little punk bullied you? I'll take care of him! He'll learn not to mess with Kogoro, the judo champion!"

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