Can a Psychic Detective Agency Exorcise Ghosts?

Reigen Arataka accepts a [Ghost Extermination Request] on his computer, and in the blink of an eye, he ends up in the Heian era.

Though the transmigration incident scares him half to death, he takes one look at the reward for completing the request: one, ten, a hundred, a thousand, ten thousand, a hundred thousand, a million...

The most famous ghost extermination business of the Heian era is now open.

*

He barely scrapes by with a string of scams, congratulating himself on how well he's doing even in the Heian era.

That is, until his modest fame catches the eye of a noble family named Ubuyashiki, who invites (kidnaps) him to protect their frail young master.

At the same time, the demon extermination request that had been quiet for ages finally lights up.

What? So that's the truth! Now he gets it, he understands everything!

So the young master is the one who's about to be killed by a demon!

From then on, he stays on guard day and night, always by the young master's side, doing everything he can to soothe him to sleep, look after him, and keep him safe...

[Why is the demon you?!]

*

No matter. There are more missions ahead. For the sake of the reward, Reigen Arataka steels himself and presses on.

[Breaking! The Eternal Paradise Cult is now open, welcoming all followers. The leader will guide you to paradise.]

Reigen Arataka: Who's stealing my business? Why is the leader a kid? Do you even know what you're doing?

[Annual Flower District celebration! Twenty percent off everything!]

Reigen Arataka: Why do I get a child as a freebie when I buy household supplies? Fine, I'll call you Ume and Taro.

[The Soryu Dojo is poisoned by a rival. Passing exorcist Master Reigen casually saves the day.]

Reigen Arataka: It's fine, really, no need to thank me... What? You insist I officiate your wedding and become your godfather?

*

As the Reigen Agency grows more and more famous, Reigen Arataka, a reliable adult, even opens a kindergarten in the Sengoku era.

But the demon extermination mission still hasn't budged...

Hey, where's the demon I'm supposed to kill?

Meanwhile, on the other side, the Boss who's recruiting for his big company:

Hey, where are my employees?

*

As Reigen Arataka goes around hustling... recruiting allies and killing demons, two intensely intimidating little shadows are always following him.

He admits he was the one who started it, but that was ages ago.

Back then, Reigen Arataka was physically and emotionally exhausted from dealing with the Ubuyashiki family's eldest young master. In a dream, he saw a well-behaved, steady little boy and couldn't help feeling fond of him.

Now that little bean has grown so tall that Reigen has to look up at him. He's inherited the family business and become its head.

Reigen Arataka: “Michikatsu, you really don't have to follow me everywhere. I...”

Meanwhile, the little bean himself listens to Reigen Arataka, one hand resting on the samurai sword at his waist. In the space of a breath, he easily slashes down a demon that suddenly appears before them.

After flicking the blood from his blade, Tsugikuni Michikatsu turns to look at Reigen Arataka.

“Haha, it's all right now, it's all right. Let's go eat first, hahaha.”

[What's going on? Why do I always get cowed by his presence whenever I try to talk about this?]

*

And then there's the time he accidentally triggers an ending like something from a niche dating sim...

“You abandoned my elder brother without permission and then came back. What do you take him for?”

“Are you blind? Who's being toyed with here? Your brother's gone mad, Yoriichi! Get me out of here before he does something he'll regret!”

“...No. You're someone my elder brother loves. I don't know how you bewitched him, but I'll keep a close eye on you for his sake.”

Faced with Tsugikuni Yoriichi, sitting by the door to keep watch over him, Reigen Arataka is completely at a loss.

[Am I really in a BL game? No way!]

Pairing: Tsugikuni Michikatsu/Kokushibo. Everyone has one-sided feelings for him (familial affection) and looks up to him, except Yoriichi.

Still a cheerful, sunny, emotionally steady shou VS a powerful but fragile, deeply troubled gong.

Our Master is the most reliable adult! You don't need to have read Mob Psycho to enjoy this.

The timeline will be adjusted somewhat, but there won't be any drastic changes. I couldn't bear to leave out any characters, so they're all joining in.

If you're fine with the rules of this strange tale, then come on in

Theme: Love is the meaning of existence.