Welcome back!!!! Consider mikoto being hit with a strain (darn these strains for enabling these tropes!) That turns him into a dog and wandering over to s4 hq (or vice versa + your choice on what dog they turn into)
We have had so much fun with Strains on this blog, I swear. I think Mikoto would be the more fun one to turn into a dog because please drop what you're doing and imagine a fire-wielding dog. It's too good to be left alone, right?
What kind of dog do you think Mikoto would be, though? Something huge, paradoxically lazy but muscled, and gorgeous - maybe a greyhound then? Or maybe something that seems scarier, like a pit bull? [Reisi would be a chatty chihuahua, if anyone wants to know. Don't @ me on this one. I'm not taking other opinions.] I think maybe he's a pit bull, but an especially lazy one.
His clan knows it's him because he gets hit in the middle of a battle with a bunch of random thugs on their turf. Izumo sees him get hit, and a few second later, there's a speckled white and grey pit bull with golden eyes sitting on top of Mikoto's clothes. Izumo finds this hilarious, frankly.
All of Homra are amused, except for Yata, who keeps wanting Kusanagi-san and Totsuka-san to stop cracking up at the sight of the Red King. Even Anna smiles a little as she jumps up on the couch to pet him.
Mikoto's not bothered, really. The only drawback is that he can't smoke. But he can still nap. And he was about to do just that when Izumo insisted they go to S4 and have them analyze the Strain's powers. (The Strain got away because Homra's top members were distracted by pit bull Mikoto.) Maybe S4 can help them.
Mikoto can't talk, exactly. But he can growl. So he does, making it inescapably clear what he thinks of this plan. Homra doesn't really need an interpreter for Mikoto's disgruntled growls, but if they did, they'd have Anna, who finds she can easily read the fire-engine loud "Hell no!!!!" Mikoto's putting out.
They show up to S4, and the first person they run into is Seri, who's pissed because how dare you brutes bring a dog into S4 headquarters? She's insisting they get out, but Izumo explains and she stops mid-sentence to peer at the Red King.
Do dogs look bored? Because she swears this one does. In any case, the golden eyes give it away.
Reluctantly, she leads Izumo, Anna, and dog Mikoto into Munakata's office. (They left Yata at Homra because things are touchy enough without him fighting everyone at S4. Totsuka's responsible for babysitting the bar.)
Munakata is never surprised, we know. But he lifts a brow when Izumo explains what happened. His eyes take on a mischievous glint when he looks at Mikoto and says, "Are you housebroken, Mikoto?"
Mikoto is tempted - oh soooooo tempted - to piss on the tatami in Munakata's precious office. But he knows Reisi will make him suffer from sex withdrawal if he does. So he holds himself back. Barely.
Reisi kneels in front of him and scratches him under the chin. Typically, animals are terrified of Reisi (this is canon), but Mikoto's never been afraid and he won't be now. He continues scratching under Mikoto's chin, utterly delighted by the way Mikoto's tail wags. "Cute," he says. "I'd might enjoy keeping you like this."
There's a silence, because like so many of Munakata's jokes, this one wasn't funny.
Anna pipes up. "Mikoto says, "If you keep it up, when I get back to normal, I'll push you into that couch and show you the meaning of doggystyle"."
There's another silence. Mikoto's all thinking, "I probably shouldn't have said that." Izumo's thinking, "Maybe I shouldn't have brought Anna, but we needed an interpreter." Reisi is thinking, "I truly hope Kushina Anna has no idea what Mikoto means." And Seri is thinking, "Homra is no place to raise a child."
Anna only answers Seri. "It is," she says quietly.
Reisi stands and sighs. "I hoped you'd be trainable in your current form, but I suppose I was mistaken."
Anna replies, "Mikoto says, "I'm going to kill you"."
Given that Mikoto's in no state to fight him seriously, Reisi continues being an ass. "Sit, sit," he says, making a sitting motion with his hand. "Now stay. I need to call the infirmary and see if they can scan you." He picks up the phone, dials a few numbers, and waits for the line to connect. He can't help himself, so he teases, "Who's a good boy, hmm?"
All the dog jokes stop immediately when Mikoto hurls a fireball through the bamboo poles that mark off the tea room in Reisi's office.
Needless to say, S4 considers this an urgent matter. Not only did the Red King damage part of their headquarters, the Blue King needs Mikoto in human form so he can fight the man without feeling ridiculous.