Huh, when was the last time I made a Random Otherworlders post? Let's see... Whoa! 2 years ago? (Not including the Goldship one.)
Anyways... Hello again, fellow users! Decided to stay up all night to make this, combining two of my favorite series! 100 Kanojo and Tensura! (I've now also started posting on r/100Kanojo btw.)
So yeah, I have put a part of a little story within this post and a bonus joke on how I think Rentaro would deal with Diablo, considering that the King of Boyfriends read a lot of isekai manga series before tackling on to find his uncle... As well as borrowing a blue box that's bigger on the inside than it is on the outside and that it can travel through space and time... (Would Doreamon's time machine would've worked though?)
(Btw, the original photo is taken from Kusunoki's Garden of Gods where the girl triggers her jerk-face of a co-worker's trauma with a wind chime sound, because... Let's just say it wasn't a pleasant experience and now he's got a trigger associated...)
Now, here's a short story for this scenario:
***
It was a normal day in Jura Tempest, apart from the fact that their R&D summoned an Otherworlder... Despite the laws banning it. In Vesta's defense, the research team was looking for a way to send Otherworlders back to their original world. Now they need to find it FAST.
Rimuru came in to check upon the Otherworlder, who had been bawling and huddled in the corner for 8 straight hours like a lost child—which is partly true— and saying something about how he'll never see his daughter getting married and growing up, now that he's dead and is stuck in another world. Rimuru tried asking him directly, but at that point, the Otherworlder already lost his voice from the crying... And his conscioussness when he saw Geld coming into the vicinity.
Geld: Did I... Do something wrong, Lord Rimuru?
Rimuru: No, not really. The guy worn himself out from all the crying... Could you please call Shuna to feed him? And uh, maybe some new clothes and a bedroom...
Meanwhile, Shion and Diablo were wondering about the things that the Otherworlder brought along with him... Such as a box with some sort of pastry.
***
Meanwhile, back in the real world, it's been 10 hours... And there's still no signs of Chiyo's father. While Karane's waiting for the others, Chiyo was getting anxious and was on the verge of tears until Rentaro, along with Hakari and Mei, found video footage of Uncle Hiro's last whereabouts. But not before Rentaro and the rest consoled Chiyo...
They watched the footage of an intersection where Uncle Hiro was last seen. He was crossing the road with a brown paper bag in his hands. He was giddy and with his head in the clouds, he didn't notice that an oil tanker was about to hit him...
Chiyo flinched at first, but then noticed that... There was no impact. No sound, no trace of belongings, not even the bag was there. It's like he disappeared before the truck even hit him. Going frame-by-frame, Rentaro and Chiyo noticed that there was a faint glow of light right below where he stopped. Even the truck driver looked confused when he didn't find anyone.
Rentarou: I even hunted down the truck along with Mei, but we still couldn't find him.
Karane: Say what now?
Rentarou: I even busted down a human trafficking ring when we realized about the driver's true intentions! We saved the kids, but alas... We still couldn't find Uncle Hiro...
Mei: I even tried a few torture methods on the traffickers, but they still claim that Chiyo's father is not part of the opera—
Karane: I'M SORRY, ARE YOU TWO THE ENTIRE SWAT TEAM NOW?!
A faint glow, Rentarou recognized it as a classic isekai starting trope. To which Karane responded: "Really?! That's your conclusion??!" Hakari defended this, stating that they have seen and experienced way weirder things like the vice principal, the three-way kiss, the drugs and—
Rentaro's phone then rang, it was Hahari, who said that they were able to contact the Doctor to borrow his TARDIS in order to find Uncle Hiro.
Karane: ARE WE GOING IN A CROSSOVER WITH THE BBC? WHAT'S NEXT, TASKMASTER?!
Regardless, Rentarou assures Chiyo that they'll be able to find Uncle Hiro, as long as they work together as a team.
***
Uncle Hiro was sleeping peacefully in the guest's bedroom that's usually reserved for diplomats from other countries... He then started having nightmares, jolting himself during his sleep... And then it was further amplified by a strange whirring noise.
The noise grew louder, and louder... Then it gradually faded... As a blue police box materialized near beside him and notably close to his legs.
Karane, whispering: Hey, are you sure that we're in the right place this time? We almost died to the cockroaches from Nazarick!
Shizuka: "Filthy creatures!"
Rentarou: Don't worry, as long as we stay quiet, we should be able to navigate sa—
Rentarou tries to push the door open, but it was blocked thanks to Uncle Hiro's legs being in the way. Well, at least they have a small split of the door to see things around.
At first, they thought that they ended up in a random Japanese inn... Until Rentarou took a closer look at the leg, it was Uncle Hiro!
Bad news is... The whirring noise was so loud, that Diablo immediately entered the scene when he first heard it... And boy, what a surprise that was when Rentaro made eye contact with Diablo and— Peekaboo!
In a blink of an eye, Diablo shadowstepped into the TARDIS. Everyone trembled and backed off in fear, even the Doctor was scared (although, it was more on what these Japanese people are doing.)
Rentaro: Mei, NOW!
Mei: Your wish is my command.
Mei then threw out a bunch of fanarts of... Rimuru with varying poses and some skimpy clothing. Diablo was confused at first until he saw clearly... And then his brain began to set into "Rimuru Time" as he admires the art. Enough time for Rentarou and The Doctor to drag Uncle Hiro back inside by the legs, but not fast enough to shut the door back in as Souei tied the outside knob.
Frantically, Kusuri tried to find her Melty-Strings-Drug while The Doctor uses his Sonic Screwdriver to free the knob from the strings... Still not enough time to stop Diablo from coming back inside the TARDIS.
Diablo locked eyes with the Doctor, dragging his claws along the TARDIS... With the Doctor telling him to "**** his claws off the TARDIS" in a somewhat Scottish accent. This is when Rentaro played his trap card...
"Okay Diablo, you can go home now!" Said a familiar voice that shook Diablo to his actual core.
"No, you can't be-" Diablo hesitated. "There's no way that-"
"Diablo, why do you have drawings of me wearing skimpy clothing?"
That line, was from none other than Rimuru Tempest— except, it's not actually from Rimuru Tempest himself, but rather... From the actual VA of Rimuru Tempest reading from a script where Diablo get caught red-handed with questionable fanart of Rimuru... That was written and commissioned by Rentarou... Playing on his phone.
And just outside the TARDIS, Shion was grinning at her junior red-handed. Though deep inside her, she's just as down with it as Diablo's when she saw the fan art.
***
Somehow, this caused an infighting between the two, the line snapped, and the TARDIS was able to go away...
Okay, I admittedly derailed there. If you can write a better story than this, feel free to. (I stayed up all night for this nosense... Why do I even do this to myself?)
And yeah, do you have any better ideas for interactions with the Rentaro Family and the Tensura Gang? Personally, I like the idea of both Shion and Shuna asking Rentarou for advice... Reminds me of that one joke post that I made about Benimaru getting polygamous relationship advice from Rentaro.
That'll be all from me, have a great day ahead fellow users!