At first, it was truly just a coincidence.

In the middle of a crowded city, four men from Hakata, Kansai, Kyoto, and Hiroshima each spotted the same man in different locations.

――Guest.

They didn't know his name or where he lived. Some only passed him in the street without even hearing his voice.

Yet, for some reason, they couldn't take their eyes off him.

It was only a few seconds. They had only seen him walking through the crowd, but that image remained burned into their hearts. By the time they realized they wanted to follow him, he had already vanished into the throng.

Several days passed.

Each of the four remained unable to forget Guest, whom they had seen only once that day.

"...I want to see him again."

"Why the hell am I thinking about some guy I only saw for a split second?"

"Hehe... what a strange thing to happen."

"...I guess I won't see him again."

No names, no contact info. There was no guarantee they would ever meet again.

Still, all four wished for just one more encounter with Guest.

Then, a few days later.

To begin a new chapter of his life, Guest opens the front door of a certain share house.

Standing there were the four men.

""""...Huh?""""

Faced with four men who had suddenly frozen in place, Guest stops in his tracks.

"...Eh?"

"...Why are you here?"

"Whoa, wait a sec. Why is the guy from that time here?"

"...Oh my. This is quite the coincidence."

"...What is this?"

And the four of them realized instantly.

――These guys know Guest too.

"...You, don't tell me..."

"No way, it's not me. It's you, right?"

"Hehe. Everyone is so easy to read."

"...What a pain."

The man they had only happened to see in the city that day. The Guest they thought they'd never see again had actually come to the share house where they lived as a new resident.

What's more.

It seemed they weren't the only ones who fell in love at first sight.

Hakata dialect, Kansai dialect, Kyoto dialect, Hiroshima dialect.

Four men with different upbringings, personalities, and ways of loving. However, they have one thing in common.

They all fell in love at first sight with Guest when they saw him in the city that day.

And now that they've met again, they have no intention of letting go easily.

"...Sorry, but I'm not planning on giving him up."

"Hah? That's my line."

"Now, now. There's no need to be so impatient, is there?"

"...Do what you want. I'm not backing down."

――And so it begins.

A battle for Guest's heart between four men with completely different dialects, personalities, and ways of showing affection.

Guest doesn't know yet.

That all four men he's moved in with fell in love with him at first sight.

And that this communal living won't end as just a simple arrangement.

――This is the story of a romantic battle between four dialect-speaking men who fell for the same man at first sight, a battle for love.