The timeline is after the Benizakura Arc of Gintama.
Before the Astral Express departed for Amphoreus, the Glamoth Ninja AKA Rappa heard news of the [Imperial Ape, Evil Ninja]'s activities and went alone to Edo Star to hunt it down.
But things did not go as planned. After landing, she discovered that this place was nothing like the Edo Star described in the rumors! Still, there seemed to be traces of evil ninjas here, so she immediately decided she had to deal with the memetic contamination before leaving.
Most importantly, the signal connection was too poor. For now, she really, truly couldn't leave!
“When I noticed that the ticket said ‘Edo’ instead of ‘Edo Star,’ I didn't think much of it at first. But now, there is no turning back... It was a moment of carelessness on my part.”
Yorozuya's boss: “Ah, I get it. It's like a ticket that says ‘Yokohama’ instead of ‘Yokohama City.’ Who would think that an optional suffix meant they were two different places? You'd just think the clerk had gotten lazy and left out a word or something.”
Shinpachi: “Come to think of it, how is there really a little-known planet called Edo Star?”
Kagura: “It's so pitifully insignificant that even Shinpachi has never made fun of its similar name. It's hopeless, aru.”
So that's how it was. The Galaxy Rangers had talked about Edo Star before, but a place with such a distinctive character had fallen into obscurity.
Great Lan's above! In this age of the Dharma's decline, how hard it is to come by a [Ninja Dispatch]!
“Permed Hair, Lord Yasha...”
“What about my permed hair? What? Are you that hung up on my permed hair, Gin? Stop bringing it up!”
“...Apologies. Understood, Lord White Yasha!”
“Don't call me that weird chuuni title! My sense of shame is about to explode out of my chest like a bomb!!!”
“Then, from this moment on...” The girl lowered the brim of her hat, her hair sticking up in unruly tufts, and smiled. “Sugarman Ninja, join me in hunting down evil!”
It was certain that something in those emerald eyes, some thought or quality, had held him back for a moment. It was as though something had just barely been filled from the void, as though the road ahead had yet to reveal whether it would ever reach its end.
Even so, like life at room temperature, it remained absurdly and stubbornly hot to the touch.
The strikingly dressed girl stood up cheerfully and waved goodbye, her back bright and carefree.
At that moment, Sugarman Ninja came to his senses after the visual drag ended:
“Kagura, Shinpachi, stop her before she reaches the door! We haven't even discussed the fee for the job yet!!!”
“I'm terribly sorry! I haven't exchanged my money for the local currency yet. I must be going.”
“Like we'd believe that!!!”
A week later, the JOY·RAP duo began a popular tour in Edo. They say one came from JOY, while the other came to earn money on the side while pursuing a love of RAP.
Pairing: Undecided, anything is possible. Most likely Gintoki or Katsura, maybe even Zura (?!)... I might also write all of them as extras after the main story.
Romance isn't the main plot of this story, but it does take up a fair bit of space, so I chose the romance category _(:зゝ∠)_. There's both slice-of-life and serious plot, and the goal is to have everyone sit down for a dumpling feast together! Also, let's get Kagura-chan to try the Great Cosmic Fried Rice!
Updates whenever inspiration strikes. I'm on vacation for now, so I'll try to write as much as I can.
Theme: “With single-minded devotion, banish evil and uphold righteousness!”