[Completed!] Osomatsu-san: Our 7th Brother?! (Fanfiction Story Movie)

Opening Monologue

The screen lights up. A spotlight shines on center stage as Osomatsu steps forward, waving with his trademark mischievous grin.

Osomatsu (cheerful): Hey, everyone! Osomatsu here! Long time no see! I've missed you all so much. It's great to be back with some fresh chaos to share!

Karamatsu strolls in casually from stage right, a towel slung over his shoulder. He gives a smooth nod.

Karamatsu (calm): It's been a while, hasn't it? Nice to see everyone again.

Choromatsu storms in from the opposite side, arms crossed and clearly trying to keep things grounded.

Choromatsu (serious): Can we focus for a second? We're not here to mess around—well, not entirely. MiroPH has written a story about us. And it's not just any story—it's our first-ever one! Pretty cool, don't you think?

Ichimatsu enters with a slow slouch, petting a cat perched lazily on his shoulder.

Ichimatsu (deadpan): Cool? More like terrifying. It's about us. Let's be honest—chaos is inevitable.

Jyushimatsu flips onto the stage with a somersault, punching the air with his usual hyper energy.

Jyushimatsu (exploding): OH! Is it about BASEBALL?! I hope it's about BASEBALL! LET'S GOOOOOO!!!

Todomatsu enters last, snapping a quick selfie with the others blurred in the background. He tilts his head for the perfect shot.

Todomatsu (confident): I'm betting it's something trendy. Like me starring in a sci-fi epic. Imagine: Todomatsu 2077. Sounds amazing, right?

A voice calls out from offstage—soft, playful, and unfamiliar, cutting through the noise.

???: (cheerful): Hey, nii-san! I'm here!

The brothers freeze mid-action. A new figure walks into the spotlight—a young man in a light orange hoodie. He adjusts his glasses with a calm smirk and casually steps forward.

Osomatsu (startled): W-Wait... who the heck are you?!

The young man chuckles, hands in his pockets as he steps closer.

???: (playful): Relax. I'm your new brother. The 7th Matsuno. Surprise!

A moment of stunned silence falls across the stage as jaws drop simultaneously.

Osomatsu (disbelief): Seventh?! What?! We didn't sign up for this!

Choromatsu (suspicious): Hold on. New brother? Where did you even come from? This doesn't make any sense!

Ichimatsu (narrowing eyes): He's suspicious. Really suspicious. Like, I-might-be-a-spy suspicious.

Jyushimatsu launches himself over to the new guy, bouncing with pure enthusiasm.

Jyushimatsu (excited): COOOOOL! Does this mean you can do flips? Or play BASEBALL?!

Todomatsu snaps another picture and offers an impressed smirk.

Todomatsu (playful): Well, you definitely pop in photos. That jacket's really working for you.

The young man chuckles again and adjusts his glasses confidently.

???: (modest): Glad you like it. Don't worry—you'll get used to me soon enough. Just... try not to overwhelm me all at once, okay?

Osomatsu recovers and steps forward with a huge grin, arms wide like he's about to announce a game show.

Osomatsu (mischievous): Alright, audience! You've seen the introduction. A new brother who thinks he can handle us? This is going to be interesting.

The brothers all turn toward the camera, pointing directly at the audience with chaotic unity.

Everyone (in unison, excited): 1, 2, 3! Osomatsu-san: Our 7th Brother?!

The screen fades to black, the sounds of their voices overlapping in excited chatter as the curtain rises on a new era of Matsuno mayhem.