Isekai by Moonlight

[robkelk]

Long-time readers will remember last year's April First post, which diverged from the main Isekai by Moonlight reality when Makoto, Usagi, and Ami volunteered to be members of Robu-san's harem on the day that Usagi met him.

If you aren't a long-time reader, welcome!

This is set in that reality. It might be a cliched premise, but at least Robu-san doesn't have an in-universe character sheet. So let's look in on it from time to time... as long as those times are on April First.


From "If Isekai by Moonlight Was a Harem Comedy, Chapter R"

---

Now that Ail and An had resumed their life-long journey through the universe, we finally had time to relax. We couldn't possibly follow canon for the rest of the R season since Usagi was one of my girlfriends instead of Chiba-san's destined lover; there was no way that Chibiusa could possibly appear.

At least, that's what I thought. Stupid genre conventions.

The nine of us were enjoying a picnic lunch in a glade in the wooded area behind Rei's shrine, one of the few places in Tokyo where our group could relax without drawing unwanted attention. Was it my fault that seven beautiful girls, most of whom attended classes at Kuritsu Juban Chuugakkou, had agreed to share me as their sole boyfriend? Probably; "collecting a harem" did appear to be my metahuman ability, after all.

We were approaching a milestone day for one of my first two girlfriends. "What do you want for your birthday, Usagi?"

"You know what I want for my birthday, Robu," she said with a salacious grin.

"Not until both of you are sixteen," Saeko-sensei insisted. She wasn't a member of my harem, although she had no problem with her only child being the third member of said group; it was just her turn to be our chaperone.

Ami sighed, then complained, "That's two years from now, mama."

Usagi stretched out and put her head on my lap, face up. "I suppose a kiss will have to do until then... hey, what's that?" She pointed straight up, then sat up.

We all looked to see something that looked like a cloud, far too low in the sky, forming a torus... which immediately opened into a portal. A ball fell out of the portal, bounced off of my head and into my lap.

I picked it up, saw that it was Luna-P, and said, "Looks like we're getting the rest of the R season after all."

Then a little girl fell through the portal.

Followed by a second little girl.

And then more. Eventually, seven girls landed in my girlfriends' laps. They had different faces and heights, but every one of them had the same shade of brown hair that I have and more of them had blue eyes than any other colour, just like my girlfriends.

After we got ourselves untangled from each other, Saeko-sensei said, "Girls, it's impolite to interrupt another group of people without introducing yourselves."

"Oh, right! I'm Usagi," said the girl with short twintails.

"I'm Reika," from the brown-eyed one who had her hair in a hime cut.

"I'm Makoto Junior," from the ponytailed girl – one of the two newcomers with green eyes. "M.J. for short."

"I'm Naruru." The other green-eyed youngster, she wore her hair loose.

"My name is Amiko," said the one with the pixie cut as she curtsied to us.

"I'm Mina. Just Mina," from the one with shoulder-length hair and a hair ribbon.

"And I'm Ichiko," the last one, who had hazel eyes and wore her hair in a bob cut, announced.

At this point, even Usagi had noticed the similarity in names between them and us. "Robu, who are all these girls?

"Robu?" All seven of the little girls raced over, ready to hug me. "Papa!"

---

From "If Isekai by Moonlight Was a Harem Comedy, Chapter R, Return"

---

We watched from a dozen feet above a nearby building as Petz made her move. "Be sent to another dimension!"

And Makoto, Ami, and I were gone.

"Robu-san! Nooooo!" Usagi cried out. "And Ami-chan and Mako-chan, too."

"If they're still alive, those two are going to have such a head start on us," Rei complained.

Two years of a head start in another dimension, my second raven-haired beauty. Oh, and another ten minutes back home. We could finally make our move now that we were gone and the time loop had stabilized, so we all attacked Petz at once, starting with a little something I learned while we were away.

"Struggle Bind!"
"Mercury Aqua Rhapsody!"
"Jupiter Oak Evolution!"
"Claíomh Solais!"

It wasn't a curb-stomp battle. Petz would have had a better chance to come out of a curb-stomp battle in one piece.

As we made our way down to the others on a Wing Road, the young girls all winced and gasped, with Ichiko and Naruru dropping to their knees.

We quickened our pace. "Are you all right?"

"We're okay, Ami-mama," M.J. said. "Our memories are changing because our past – your present – just changed."

As the effect ended, Mina turned to Amiko and sighed. "Four more mamas. Papa never could keep it in his pants."

I was a bit dismayed to hear that from an eight-year-old. "Young lady, who taught you to use that kind of language?"

"You did, Papa."

Stupid temporal conventions.

Amiko pointed out, "Mina, if Papa didn't have a harem, we wouldn't exist." Then she turned to our group. "Welcome back home, Papa, Mama, Makoto-mama. And I'm happy to meet you, Hayate-mama, Ginga-mama, Shario-mama, and Wendi-mama."

And then a portal opened in the sky and three more little girls dropped out of it. I guess Sailor Moon never managed to cure Ginga's infertility.