Special Investigation Report from Yokohama

Hongyao, an ordinary but capable Saniwa.

Yokohama, a wondrous city beset by calamities.

A god, a character who... sounds like they're prone to going dark, and often turns out to be the culprit.

When Hongyao received a special investigation assignment in the present day, she thought she had it in the bag. Time Retrograde Army invasions of the present world were often connected to gods. She knew the god in this world. He was volatile, dangerous, and powerful, but he was obsessed with the Mafia and had no interest in causing trouble. There was no way he'd team up with the Time Retrograde Army.

Even when she discovered that an Outer God had descended, Hongyao stayed calm. This Outer God was even more of a shut-in than a tortoise. Give him an ocean and he'd sleep until the end of time. Once she figured out how the Time Retrograde Army had invaded, she could happily return to her citadel.

So Hongyao confidently wrote: The gods in this world are highly stable, and it is perfectly safe. The invasion by the Time Retrograde Army is purely acci-

Then she received reports of trouble caused by a certain Russian information broker, a certain retired military doctor, and... a certain bandage-wearing troublemaker, formerly an executive of the Port Mafia and now a member of the Armed Detective Agency.

Hongyao: *smiles*

And that wasn't all. Four years ago, when she came to this world as a special inspector, this bandage-wearing troublemaker took up one of her friend slots and infuriated her half to death. Four years later, she finally decided there was no point in holding a grudge against a walking disaster, but then he inexplicably started pretending they were strangers...

See these swordsmen from my citadel? They're not here to protect me. They're holding me back so I don't beat you up.

Notes:

1. Mainly Touken Ranbu and Bungo Stray Dogs, with a little Jujutsu Kaisen.

2. The female lead is a Saniwa with cheat abilities. The pairing is Dazai Osamu, tentative.

3. The original works belong to their respective creators, and the fanfiction belongs to me. The characters belong to their creators; any OOC characterization is on me.

Theme: The swords taught me love and courage, and I will teach them to you