[Location: Batcave – Post-Mission Debrief Present: Batman, Nightwing, Barbara, Mugen, Jason, League comms open with Avengers watching too]
Jason sat on a med table swinging his legs, grinning to himself. Mugen paced in front of him like a fed-up high school teacher who just found out his student failed an open-book test.
Mugen (dramatically):
"You sir are a simp!"
Jason (defensive):
"Am not!"
Mugen (pointing accusingly):
"Are too! Out of all the women you've met—you chose the one who'll kill your ass for money and her dad's approval?!"
Barbara (eyebrow raised):
"…He's got a point."
Nightwing (laughing):
"Oh my god—he really does."
Jason (crossing his arms):
"She saved us! She's cool! You all act like she's—"
Mugen (interrupting, mockingly):
"'Cool'? My guy, she popped up, wrecked a building, winked at you, and you folded like laundry!"
Jason (muttering):
"…You're just jealous."
Mugen (grabbing his head, fake sobbing):
"Jealous?! Bro. BRO. She sliced three dudes' spines like mozzarella sticks!"
Batman (from the Batcomputer, without turning):
"She's also an assassin."
Jason:
"She's retired! Allegedly!"
Mugen (eyes wide):
"Oh, 'allegedly'? That's comforting. Can't wait for her to 'allegedly' slit your throat after brunch with Slade!"
Bruce (dryly):
"Jason. She has five bodies on her record by age fourteen. One of them was a dentist."
Jason:
"Ok, but did we know what the dentist did?"
Mugen (pointing at Jason):
"Look at you! Already making excuses. Textbook simp behavior. You're already planning their future wedding like:"
(Mugen throws his voice, mimicking Jason):
"'Babe, don't worry about my spine—I got a spare!'"
The League and Avengers on comms burst out laughing.
Tony Stark (cracking up):
"Someone give this kid a mic and a Netflix special."
Diana (hiding her smile):
"You're being harsh, Mugen."
Mugen (without hesitation):
"No. I'm being merciful. I'm saving this boy's LIFE. I've seen simpdom take many forms, and this one's terminal."
Jason (mocking):
"Right, because you're the expert on love?"
Mugen (smug):
"At least I don't fall for girls with kill counts higher than Call of Duty leaderboards."
Nightwing (laughing uncontrollably):
"HE SAID WHAT HE SAID!"
Barbara (holding in laughter):
"…Oh my god."
Bruce (clearly regretting having both boys in the cave):
"Enough."
Mugen (mimicking Batman's voice perfectly):
"Enough. My paranoid brain refuses to accept anything but logical."
Clark (through comms):
"…Did he just—"
Tony:
"Perfectly. He did."
Mugen (still in Batman voice):
"I can't sit down because Catwoman kept whipping my ass—"
Bruce (turns slowly):
"…Mugen."
Mugen (grinning):
"Yes, Dad?"
Jason (still laughing):
"Stop! Stop! I'm gonna cry!"
⸻
[Later That Day – Mugen's Room – Jason playing guitar, Mugen on keyboard just casually remixing classical into trap beats]
Jason:
"She's not that bad."
Mugen (without looking up):
"Name one red flag she doesn't have."
Jason:
"…She's not narcissistic?"
Mugen:
"Fair. Still gonna tase her if she shows up again."
Jason (rolling eyes):
"Dude—"
Mugen (cutting him off, fake serious):
"No. I don't care if she shows up in a dress with cupcakes. I will hit her with a fridge."
⸻
[Elsewhere – Avengers HQ – Natasha watching the footage of the mission]
Natasha:
"…That kid Mugen's a menace."
Steve:
"He's also not wrong."
Carol (snorting):
"I'd watch his podcast."
This is an Oc i created back when i was thirteen,i first saw Samurai champloo and was obsessed with Mugen. Let me know if you want an oc story of mine.